157961475 has 96 divisors (see below), whose sum is σ = 335930880. Its totient is φ = 71280000.

The previous prime is 157961471. The next prime is 157961477. The reversal of 157961475 is 574169751.

157961475 is a `hidden beast` number, since 1 + 579 + 6 + 1 + 4 + 75 = 666.

It is not a de Polignac number, because 157961475 - 2² = 157961471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 157961475.

It is not an unprimeable number, because it can be changed into a prime (157961471) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 477060 + ... + 477390.

It is an arithmetic number, because the mean of its divisors is an integer number (3499280).

Almost surely, 2^157961475 is an apocalyptic number.

157961475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157961475 is an abundant number, since it is smaller than the sum of its proper divisors (177969405).

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

157961475 is a wasteful number, since it uses less digits than its factorization.

157961475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 447 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 157961475 is about 12568.2725543330. The cubic root of 157961475 is about 540.5680750203.

It can be divided in two parts, 15796 and 1475, that added together give a palindrome (17271).

The spelling of 157961475 in words is "one hundred fifty-seven million, nine hundred sixty-one thousand, four hundred seventy-five".