157093697 has 2 divisors, whose sum is σ = 157093698. Its totient is φ = 157093696.

The previous prime is 157093687. The next prime is 157093711. The reversal of 157093697 is 796390751.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136445761 + 20647936 = 11681^2 + 4544^2 .

It is a cyclic number.

It is not a de Polignac number, because 157093697 - 2²⁰ = 156045121 is a prime.

It is not a weakly prime, because it can be changed into another prime (157093687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78546848 + 78546849.

It is an arithmetic number, because the mean of its divisors is an integer number (78546849).

Almost surely, 2^157093697 is an apocalyptic number.

It is an amenable number.

157093697 is a deficient number, since it is larger than the sum of its proper divisors (1).

157093697 is an equidigital number, since it uses as much as digits as its factorization.

157093697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 157093697 is about 12533.7024458059. The cubic root of 157093697 is about 539.5763675624.

The spelling of 157093697 in words is "one hundred fifty-seven million, ninety-three thousand, six hundred ninety-seven".