157362981 has 16 divisors (see below), whose sum is σ = 214027968. Its totient is φ = 102816000.

The previous prime is 157362979. The next prime is 157363001. The reversal of 157362981 is 189263751.

It is not a de Polignac number, because 157362981 - 2¹ = 157362979 is a prime.

It is a super-2 number, since 2×157362981² = 49526215578412722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157362901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54781 + ... + 57581.

It is an arithmetic number, because the mean of its divisors is an integer number (13376748).

Almost surely, 2^157362981 is an apocalyptic number.

It is an amenable number.

157362981 is a deficient number, since it is larger than the sum of its proper divisors (56664987).

157362981 is a wasteful number, since it uses less digits than its factorization.

157362981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its digits is 90720, while the sum is 42.

The square root of 157362981 is about 12544.4402425935. The cubic root of 157362981 is about 539.8844986166.

The spelling of 157362981 in words is "one hundred fifty-seven million, three hundred sixty-two thousand, nine hundred eighty-one".