157255771 has 2 divisors, whose sum is σ = 157255772. Its totient is φ = 157255770.

The previous prime is 157255757. The next prime is 157255793. The reversal of 157255771 is 177552751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157255771 - 2⁵ = 157255739 is a prime.

It is not a weakly prime, because it can be changed into another prime (157255711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78627885 + 78627886.

It is an arithmetic number, because the mean of its divisors is an integer number (78627886).

Almost surely, 2^157255771 is an apocalyptic number.

157255771 is a deficient number, since it is larger than the sum of its proper divisors (1).

157255771 is an equidigital number, since it uses as much as digits as its factorization.

157255771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85750, while the sum is 40.

The square root of 157255771 is about 12540.1663067122. The cubic root of 157255771 is about 539.7618645928.

The spelling of 157255771 in words is "one hundred fifty-seven million, two hundred fifty-five thousand, seven hundred seventy-one".