157361189 has 2 divisors, whose sum is σ = 157361190. Its totient is φ = 157361188.

The previous prime is 157361161. The next prime is 157361263. The reversal of 157361189 is 981163751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116273089 + 41088100 = 10783^2 + 6410^2 .

It is a cyclic number.

It is not a de Polignac number, because 157361189 - 2¹² = 157357093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_8834747 and since 157361189 and 8834747 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157361089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78680594 + 78680595.

It is an arithmetic number, because the mean of its divisors is an integer number (78680595).

Almost surely, 2^157361189 is an apocalyptic number.

It is an amenable number.

157361189 is a deficient number, since it is larger than the sum of its proper divisors (1).

157361189 is an equidigital number, since it uses as much as digits as its factorization.

157361189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 41.

The square root of 157361189 is about 12544.3688163255. The cubic root of 157361189 is about 539.8824492640.

The spelling of 157361189 in words is "one hundred fifty-seven million, three hundred sixty-one thousand, one hundred eighty-nine".