20137065 has 32 divisors (see below), whose sum is σ = 35648256. Its totient is φ = 9642240.

The previous prime is 20137057. The next prime is 20137081. The reversal of 20137065 is 56073102.

It is not a de Polignac number, because 20137065 - 2³ = 20137057 is a prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5820 + ... + 8610.

It is an arithmetic number, because the mean of its divisors is an integer number (1114008).

Almost surely, 2^20137065 is an apocalyptic number.

It is an amenable number.

20137065 is a deficient number, since it is larger than the sum of its proper divisors (15511191).

20137065 is a wasteful number, since it uses less digits than its factorization.

20137065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 20137065 is about 4487.4341220791. The cubic root of 20137065 is about 272.0604365776.

The spelling of 20137065 in words is "twenty million, one hundred thirty-seven thousand, sixty-five".