165152403 has 12 divisors (see below), whose sum is σ = 256903920. Its totient is φ = 101632176.

The previous prime is 165152371. The next prime is 165152447. The reversal of 165152403 is 304251561.

165152403 is a `hidden beast` number, since 1 + 651 + 5 + 2 + 4 + 0 + 3 = 666.

It is not a de Polignac number, because 165152403 - 2⁵ = 165152371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165152453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705663 + ... + 705896.

It is an arithmetic number, because the mean of its divisors is an integer number (21408660).

Almost surely, 2^165152403 is an apocalyptic number.

165152403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

165152403 is a deficient number, since it is larger than the sum of its proper divisors (91751517).

165152403 is a wasteful number, since it uses less digits than its factorization.

165152403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411578 (or 1411575 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 165152403 is about 12851.1634881827. The cubic root of 165152403 is about 548.6494721612.

The spelling of 165152403 in words is "one hundred sixty-five million, one hundred fifty-two thousand, four hundred three".