157405151231 has 32 divisors (see below), whose sum is σ = 170209641600. Its totient is φ = 145028136960.

The previous prime is 157405151203. The next prime is 157405151243. The reversal of 157405151231 is 132151504751.

It is not a de Polignac number, because 157405151231 - 2¹⁴ = 157405134847 is a prime.

It is a super-2 number, since 2×157405151231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157405151191 and 157405151200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157405156231) 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, 169434575 + ... + 169435503.

It is an arithmetic number, because the mean of its divisors is an integer number (5319051300).

Almost surely, 2^157405151231 is an apocalyptic number.

157405151231 is a deficient number, since it is larger than the sum of its proper divisors (12804490369).

157405151231 is a wasteful number, since it uses less digits than its factorization.

157405151231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 21000, while the sum is 35.

Adding to 157405151231 its reverse (132151504751), we get a palindrome (289556655982).

The spelling of 157405151231 in words is "one hundred fifty-seven billion, four hundred five million, one hundred fifty-one thousand, two hundred thirty-one".