157223952 has 120 divisors (see below), whose sum is σ = 471916224. Its totient is φ = 48736512.

The previous prime is 157223933. The next prime is 157223959. The reversal of 157223952 is 259322751.

157223952 is a `hidden beast` number, since 1 + 572 + 2 + 39 + 52 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (157223959) 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 23 ways as a sum of consecutive naturals, for example, 121903 + ... + 123185.

Almost surely, 2^157223952 is an apocalyptic number.

157223952 is a gapful number since it is divisible by the number (12) 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 157223952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235958112).

157223952 is an abundant number, since it is smaller than the sum of its proper divisors (314692272).

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

157223952 is a wasteful number, since it uses less digits than its factorization.

157223952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357 (or 1348 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 157223952 is about 12538.8975591955. The cubic root of 157223952 is about 539.7254571504.

The spelling of 157223952 in words is "one hundred fifty-seven million, two hundred twenty-three thousand, nine hundred fifty-two".