157444357 has 8 divisors (see below), whose sum is σ = 180691200. Its totient is φ = 134386224.

The previous prime is 157444333. The next prime is 157444363. The reversal of 157444357 is 753444751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157444357 - 2²³ = 149055749 is a prime.

It is a super-2 number, since 2×157444357² = 49577451102286898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157444057) 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 7 ways as a sum of consecutive naturals, for example, 45382 + ... + 48727.

It is an arithmetic number, because the mean of its divisors is an integer number (22586400).

Almost surely, 2^157444357 is an apocalyptic number.

It is an amenable number.

157444357 is a deficient number, since it is larger than the sum of its proper divisors (23246843).

157444357 is an equidigital number, since it uses as much as digits as its factorization.

157444357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94355.

The product of its digits is 235200, while the sum is 40.

The square root of 157444357 is about 12547.6833319940. The cubic root of 157444357 is about 539.9775447910.

The spelling of 157444357 in words is "one hundred fifty-seven million, four hundred forty-four thousand, three hundred fifty-seven".