142299520 has 256 divisors, whose sum is σ = 416404800. Its totient is φ = 45875200.

The previous prime is 142299473. The next prime is 142299529. The reversal of 142299520 is 25992241.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142299529) 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 31 ways as a sum of consecutive naturals, for example, 3470700 + ... + 3470740.

Almost surely, 2^142299520 is an apocalyptic number.

142299520 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 142299520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208202400).

142299520 is an abundant number, since it is smaller than the sum of its proper divisors (274105280).

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

142299520 is a wasteful number, since it uses less digits than its factorization.

142299520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 142299520 is about 11928.9362476291. The cubic root of 142299520 is about 522.0769008316.

The spelling of 142299520 in words is "one hundred forty-two million, two hundred ninety-nine thousand, five hundred twenty".