20134965 has 64 divisors (see below), whose sum is σ = 36495360. Its totient is φ = 9434880.

The previous prime is 20134957. The next prime is 20134973. The reversal of 20134965 is 56943102.

It is an interprime number because it is at equal distance from previous prime (20134957) and next prime (20134973).

It is not a de Polignac number, because 20134965 - 2³ = 20134957 is a prime.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 379879 + ... + 379931.

It is an arithmetic number, because the mean of its divisors is an integer number (570240).

Almost surely, 2^20134965 is an apocalyptic number.

It is an amenable number.

20134965 is a deficient number, since it is larger than the sum of its proper divisors (16360395).

20134965 is a wasteful number, since it uses less digits than its factorization.

20134965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 20134965 is about 4487.2001292566. The cubic root of 20134965 is about 272.0509789468.

The spelling of 20134965 in words is "twenty million, one hundred thirty-four thousand, nine hundred sixty-five".