161150537 has 2 divisors, whose sum is σ = 161150538. Its totient is φ = 161150536.

The previous prime is 161150513. The next prime is 161150569. The reversal of 161150537 is 735051161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157351936 + 3798601 = 12544^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 161150537 - 2¹⁴ = 161134153 is a prime.

It is not a weakly prime, because it can be changed into another prime (161150237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80575268 + 80575269.

It is an arithmetic number, because the mean of its divisors is an integer number (80575269).

Almost surely, 2^161150537 is an apocalyptic number.

It is an amenable number.

161150537 is a deficient number, since it is larger than the sum of its proper divisors (1).

161150537 is an equidigital number, since it uses as much as digits as its factorization.

161150537 is an odious number, because the sum of its binary digits is odd.

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

The square root of 161150537 is about 12694.5081432878. The cubic root of 161150537 is about 544.1816824405.

The spelling of 161150537 in words is "one hundred sixty-one million, one hundred fifty thousand, five hundred thirty-seven".