157031103 has 32 divisors (see below), whose sum is σ = 220195584. Its totient is φ = 99470592.

The previous prime is 157031093. The next prime is 157031113. The reversal of 157031103 is 301130751.

It is an interprime number because it is at equal distance from previous prime (157031093) and next prime (157031113).

It is not a de Polignac number, because 157031103 - 2⁴ = 157031087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157031103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157031113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 963300 + ... + 963462.

It is an arithmetic number, because the mean of its divisors is an integer number (6881112).

Almost surely, 2^157031103 is an apocalyptic number.

157031103 is a deficient number, since it is larger than the sum of its proper divisors (63164481).

157031103 is a wasteful number, since it uses less digits than its factorization.

157031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 157031103 is about 12531.2051694959. The cubic root of 157031103 is about 539.5046932887.

Adding to 157031103 its reverse (301130751), we get a palindrome (458161854).

The spelling of 157031103 in words is "one hundred fifty-seven million, thirty-one thousand, one hundred three".