157143697 has 2 divisors, whose sum is σ = 157143698. Its totient is φ = 157143696.

The previous prime is 157143689. The next prime is 157143703. The reversal of 157143697 is 796341751.

157143697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130507776 + 26635921 = 11424^2 + 5161^2 .

It is a cyclic number.

It is not a de Polignac number, because 157143697 - 2³ = 157143689 is a prime.

It is not a weakly prime, because it can be changed into another prime (157143617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78571848 + 78571849.

It is an arithmetic number, because the mean of its divisors is an integer number (78571849).

Almost surely, 2^157143697 is an apocalyptic number.

It is an amenable number.

157143697 is a deficient number, since it is larger than the sum of its proper divisors (1).

157143697 is an equidigital number, since it uses as much as digits as its factorization.

157143697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 43.

The square root of 157143697 is about 12535.6969092269. The cubic root of 157143697 is about 539.6336071953.

The spelling of 157143697 in words is "one hundred fifty-seven million, one hundred forty-three thousand, six hundred ninety-seven".