157792471 has 4 divisors (see below), whose sum is σ = 157973272. Its totient is φ = 157611672.

The previous prime is 157792447. The next prime is 157792483. The reversal of 157792471 is 174297751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174297751 = 181 ⋅962971.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157792471 is a prime.

It is a super-3 number, since 3×157792471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157792171) 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 3 ways as a sum of consecutive naturals, for example, 89085 + ... + 90838.

It is an arithmetic number, because the mean of its divisors is an integer number (39493318).

Almost surely, 2^157792471 is an apocalyptic number.

157792471 is a deficient number, since it is larger than the sum of its proper divisors (180801).

157792471 is an equidigital number, since it uses as much as digits as its factorization.

157792471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180800.

The product of its digits is 123480, while the sum is 43.

The square root of 157792471 is about 12561.5473171103. The cubic root of 157792471 is about 540.3752204695.

The spelling of 157792471 in words is "one hundred fifty-seven million, seven hundred ninety-two thousand, four hundred seventy-one".