2113750065 has 64 divisors (see below), whose sum is σ = 3915233280. Its totient is φ = 953856000.

The previous prime is 2113750061. The next prime is 2113750073. The reversal of 2113750065 is 5600573112.

It is not a de Polignac number, because 2113750065 - 2² = 2113750061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2113750061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3663057 + ... + 3663633.

It is an arithmetic number, because the mean of its divisors is an integer number (61175520).

Almost surely, 2^2113750065 is an apocalyptic number.

It is an amenable number.

2113750065 is a deficient number, since it is larger than the sum of its proper divisors (1801483215).

2113750065 is a wasteful number, since it uses less digits than its factorization.

2113750065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 2113750065 is about 45975.5376803796. The cubic root of 2113750065 is about 1283.3680150669.

The spelling of 2113750065 in words is "two billion, one hundred thirteen million, seven hundred fifty thousand, sixty-five".