165032137 has 4 divisors (see below), whose sum is σ = 167020560. Its totient is φ = 163043716.

The previous prime is 165032123. The next prime is 165032149. The reversal of 165032137 is 731230561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165032137 - 2¹⁵ = 164999369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165032117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994087 + ... + 994252.

It is an arithmetic number, because the mean of its divisors is an integer number (41755140).

Almost surely, 2^165032137 is an apocalyptic number.

It is an amenable number.

165032137 is a deficient number, since it is larger than the sum of its proper divisors (1988423).

165032137 is an equidigital number, since it uses as much as digits as its factorization.

165032137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988422.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 165032137 is about 12846.4834487886. The cubic root of 165032137 is about 548.5162620687.

Adding to 165032137 its reverse (731230561), we get a palindrome (896262698).

The spelling of 165032137 in words is "one hundred sixty-five million, thirty-two thousand, one hundred thirty-seven".