157960189 has 2 divisors, whose sum is σ = 157960190. Its totient is φ = 157960188.

The previous prime is 157960183. The next prime is 157960211. The reversal of 157960189 is 981069751.

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., 147987225 + 9972964 = 12165^2 + 3158^2 .

It is a cyclic number.

It is not a de Polignac number, because 157960189 - 2³ = 157960181 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157960181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78980094 + 78980095.

It is an arithmetic number, because the mean of its divisors is an integer number (78980095).

Almost surely, 2^157960189 is an apocalyptic number.

It is an amenable number.

157960189 is a deficient number, since it is larger than the sum of its proper divisors (1).

157960189 is an equidigital number, since it uses as much as digits as its factorization.

157960189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 157960189 is about 12568.2213936579. The cubic root of 157960189 is about 540.5666080541.

The spelling of 157960189 in words is "one hundred fifty-seven million, nine hundred sixty thousand, one hundred eighty-nine".