116644513 has 4 divisors (see below), whose sum is σ = 117777088. Its totient is φ = 115511940.

The previous prime is 116644487. The next prime is 116644519. The reversal of 116644513 is 315446611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315446611 = 17 ⋅18555683.

It is a cyclic number.

It is not a de Polignac number, because 116644513 - 2⁹ = 116644001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116644519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566133 + ... + 566338.

It is an arithmetic number, because the mean of its divisors is an integer number (29444272).

Almost surely, 2^116644513 is an apocalyptic number.

It is an amenable number.

116644513 is a deficient number, since it is larger than the sum of its proper divisors (1132575).

116644513 is a wasteful number, since it uses less digits than its factorization.

116644513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132574.

The product of its digits is 8640, while the sum is 31.

The square root of 116644513 is about 10800.2089331642. The cubic root of 116644513 is about 488.6014724319.

The spelling of 116644513 in words is "one hundred sixteen million, six hundred forty-four thousand, five hundred thirteen".