157454271 has 24 divisors (see below), whose sum is σ = 246822576. Its totient is φ = 96145920.

The previous prime is 157454257. The next prime is 157454281. The reversal of 157454271 is 172454751.

It is a de Polignac number, because none of the positive numbers 2^k-157454271 is a prime.

It is a super-2 number, since 2×157454271² = 49583694912282882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157454281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10191 + ... + 20463.

It is an arithmetic number, because the mean of its divisors is an integer number (10284274).

Almost surely, 2^157454271 is an apocalyptic number.

157454271 is a deficient number, since it is larger than the sum of its proper divisors (89368305).

157454271 is a wasteful number, since it uses less digits than its factorization.

157454271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10423 (or 10420 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The square root of 157454271 is about 12548.0783787798. The cubic root of 157454271 is about 539.9888783718.

The spelling of 157454271 in words is "one hundred fifty-seven million, four hundred fifty-four thousand, two hundred seventy-one".