142957224 has 40 divisors (see below), whose sum is σ = 400414410. Its totient is φ = 47652192.

The previous prime is 142957219. The next prime is 142957237. The reversal of 142957224 is 422759241.

142957224 is a `hidden beast` number, since 1 + 429 + 5 + 7 + 224 = 666.

It can be written as a sum of positive squares in only one way, i.e., 122544900 + 20412324 = 11070^2 + 4518^2 .

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

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 9 ways as a sum of consecutive naturals, for example, 109659 + ... + 110954.

Almost surely, 2^142957224 is an apocalyptic number.

It is an amenable number.

142957224 is an abundant number, since it is smaller than the sum of its proper divisors (257457186).

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

142957224 is a wasteful number, since it uses less digits than its factorization.

142957224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220631 (or 220618 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 142957224 is about 11956.4720549165. The cubic root of 142957224 is about 522.8800059108.

It can be divided in two parts, 1429 and 57224, that added together give a triangular number (58653 = T₃₄₂).

The spelling of 142957224 in words is "one hundred forty-two million, nine hundred fifty-seven thousand, two hundred twenty-four".