161596037 has 2 divisors, whose sum is σ = 161596038. Its totient is φ = 161596036.

The previous prime is 161596003. The next prime is 161596051. The reversal of 161596037 is 730695161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148986436 + 12609601 = 12206^2 + 3551^2 .

It is a cyclic number.

It is not a de Polignac number, because 161596037 - 2¹⁴ = 161579653 is a prime.

It is a super-2 number, since 2×161596037² = 52226558348210738, which contains 22 as substring.

It is a Chen prime.

It is equal to p_9058907 and since 161596037 and 9058907 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 (161596837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80798018 + 80798019.

It is an arithmetic number, because the mean of its divisors is an integer number (80798019).

Almost surely, 2^161596037 is an apocalyptic number.

It is an amenable number.

161596037 is a deficient number, since it is larger than the sum of its proper divisors (1).

161596037 is an equidigital number, since it uses as much as digits as its factorization.

161596037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 161596037 is about 12712.0429908021. The cubic root of 161596037 is about 544.6826837297.

The spelling of 161596037 in words is "one hundred sixty-one million, five hundred ninety-six thousand, thirty-seven".