157854971 has 2 divisors, whose sum is σ = 157854972. Its totient is φ = 157854970.

The previous prime is 157854953. The next prime is 157855001. The reversal of 157854971 is 179458751.

It is a weak prime.

It is an emirp because it is prime and its reverse (179458751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157854971 - 2¹⁰ = 157853947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157854941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78927485 + 78927486.

It is an arithmetic number, because the mean of its divisors is an integer number (78927486).

Almost surely, 2^157854971 is an apocalyptic number.

157854971 is a deficient number, since it is larger than the sum of its proper divisors (1).

157854971 is an equidigital number, since it uses as much as digits as its factorization.

157854971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 47.

The square root of 157854971 is about 12564.0348216646. The cubic root of 157854971 is about 540.4465567695.

The spelling of 157854971 in words is "one hundred fifty-seven million, eight hundred fifty-four thousand, nine hundred seventy-one".