158225657 has 2 divisors, whose sum is σ = 158225658. Its totient is φ = 158225656.

The previous prime is 158225629. The next prime is 158225663. The reversal of 158225657 is 756522851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83247376 + 74978281 = 9124^2 + 8659^2 .

It is a cyclic number.

It is not a de Polignac number, because 158225657 - 2⁸ = 158225401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (158225677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79112828 + 79112829.

It is an arithmetic number, because the mean of its divisors is an integer number (79112829).

Almost surely, 2^158225657 is an apocalyptic number.

It is an amenable number.

158225657 is a deficient number, since it is larger than the sum of its proper divisors (1).

158225657 is an equidigital number, since it uses as much as digits as its factorization.

158225657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 41.

The square root of 158225657 is about 12578.7780408114. The cubic root of 158225657 is about 540.8692641045.

The spelling of 158225657 in words is "one hundred fifty-eight million, two hundred twenty-five thousand, six hundred fifty-seven".