151601657 has 2 divisors, whose sum is σ = 151601658. Its totient is φ = 151601656.

The previous prime is 151601629. The next prime is 151601701. The reversal of 151601657 is 756106151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150528361 + 1073296 = 12269^2 + 1036^2 .

It is a cyclic number.

It is not a de Polignac number, because 151601657 - 2²² = 147407353 is a prime.

It is not a weakly prime, because it can be changed into another prime (151606657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75800828 + 75800829.

It is an arithmetic number, because the mean of its divisors is an integer number (75800829).

Almost surely, 2^151601657 is an apocalyptic number.

It is an amenable number.

151601657 is a deficient number, since it is larger than the sum of its proper divisors (1).

151601657 is an equidigital number, since it uses as much as digits as its factorization.

151601657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 151601657 is about 12312.6624659332. The cubic root of 151601657 is about 533.2137205284.

The spelling of 151601657 in words is "one hundred fifty-one million, six hundred one thousand, six hundred fifty-seven".