155161037 has 2 divisors, whose sum is σ = 155161038. Its totient is φ = 155161036.

The previous prime is 155161009. The next prime is 155161043. The reversal of 155161037 is 730161551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148328041 + 6832996 = 12179^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 155161037 - 2¹⁰ = 155160013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155161067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77580518 + 77580519.

It is an arithmetic number, because the mean of its divisors is an integer number (77580519).

Almost surely, 2^155161037 is an apocalyptic number.

It is an amenable number.

155161037 is a deficient number, since it is larger than the sum of its proper divisors (1).

155161037 is an equidigital number, since it uses as much as digits as its factorization.

155161037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 155161037 is about 12456.3653205901. The cubic root of 155161037 is about 537.3545012343.

The spelling of 155161037 in words is "one hundred fifty-five million, one hundred sixty-one thousand, thirty-seven".