165413955 has 48 divisors (see below), whose sum is σ = 312560640. Its totient is φ = 74467008.

The previous prime is 165413929. The next prime is 165413957. The reversal of 165413955 is 559314561.

It is a happy number.

It is not a de Polignac number, because 165413955 - 2⁶ = 165413891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165413957) 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 in 47 ways as a sum of consecutive naturals, for example, 47566 + ... + 50924.

It is an arithmetic number, because the mean of its divisors is an integer number (6511680).

Almost surely, 2^165413955 is an apocalyptic number.

165413955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165413955 is a deficient number, since it is larger than the sum of its proper divisors (147146685).

165413955 is a wasteful number, since it uses less digits than its factorization.

165413955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448 (or 3441 counting only the distinct ones).

The product of its digits is 81000, while the sum is 39.

The square root of 165413955 is about 12861.3356615866. The cubic root of 165413955 is about 548.9389516093.

The spelling of 165413955 in words is "one hundred sixty-five million, four hundred thirteen thousand, nine hundred fifty-five".