142979256 has 288 divisors, whose sum is σ = 497952000. Its totient is φ = 38211264.

The previous prime is 142979233. The next prime is 142979281. The reversal of 142979256 is 652979241.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 1809825 + ... + 1809903.

It is an arithmetic number, because the mean of its divisors is an integer number (1729000).

Almost surely, 2^142979256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142979256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248976000).

142979256 is an abundant number, since it is smaller than the sum of its proper divisors (354972744).

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

142979256 is a wasteful number, since it uses less digits than its factorization.

142979256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 110 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 142979256 is about 11957.3933614312. The cubic root of 142979256 is about 522.9068659281.

The spelling of 142979256 in words is "one hundred forty-two million, nine hundred seventy-nine thousand, two hundred fifty-six".