142530780 has 192 divisors, whose sum is σ = 490613760. Its totient is φ = 30191616.

The previous prime is 142530779. The next prime is 142530781. The reversal of 142530780 is 87035241.

142530780 is nontrivially palindromic in base 11.

142530780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142530779) and next prime (142530781).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142530781) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 422772 + ... + 423108.

It is an arithmetic number, because the mean of its divisors is an integer number (2555280).

Almost surely, 2^142530780 is an apocalyptic number.

142530780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142530780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245306880).

142530780 is an abundant number, since it is smaller than the sum of its proper divisors (348082980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142530780 is a wasteful number, since it uses less digits than its factorization.

142530780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 142530780 is about 11938.6255490320. The cubic root of 142530780 is about 522.3595678851.

The spelling of 142530780 in words is "one hundred forty-two million, five hundred thirty thousand, seven hundred eighty".