142941780 has 192 divisors, whose sum is σ = 492065280. Its totient is φ = 34265088.

The previous prime is 142941737. The next prime is 142941787. The reversal of 142941780 is 87149241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142941787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 210802 + ... + 211478.

It is an arithmetic number, because the mean of its divisors is an integer number (2562840).

Almost surely, 2^142941780 is an apocalyptic number.

142941780 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 142941780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246032640).

142941780 is an abundant number, since it is smaller than the sum of its proper divisors (349123500).

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

142941780 is a wasteful number, since it uses less digits than its factorization.

142941780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 142941780 is about 11955.8261947889. The cubic root of 142941780 is about 522.8611759201.

The spelling of 142941780 in words is "one hundred forty-two million, nine hundred forty-one thousand, seven hundred eighty".