157751897 has 2 divisors, whose sum is σ = 157751898. Its totient is φ = 157751896.

The previous prime is 157751879. The next prime is 157751911. The reversal of 157751897 is 798157751.

157751897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (157751879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155850256 + 1901641 = 12484^2 + 1379^2 .

It is a cyclic number.

It is not a de Polignac number, because 157751897 - 2⁶ = 157751833 is a prime.

It is a super-2 number, since 2×157751897² = 49771322014197218, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157751497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78875948 + 78875949.

It is an arithmetic number, because the mean of its divisors is an integer number (78875949).

Almost surely, 2^157751897 is an apocalyptic number.

It is an amenable number.

157751897 is a deficient number, since it is larger than the sum of its proper divisors (1).

157751897 is an equidigital number, since it uses as much as digits as its factorization.

157751897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 617400, while the sum is 50.

The square root of 157751897 is about 12559.9322052310. The cubic root of 157751897 is about 540.3289000007.

The spelling of 157751897 in words is "one hundred fifty-seven million, seven hundred fifty-one thousand, eight hundred ninety-seven".