118461565 has 4 divisors (see below), whose sum is σ = 142153884. Its totient is φ = 94769248.

The previous prime is 118461529. The next prime is 118461589. The reversal of 118461565 is 565164811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93431556 + 25030009 = 9666^2 + 5003^2 .

It is a cyclic number.

It is not a de Polignac number, because 118461565 - 2⁷ = 118461437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11846152 + ... + 11846161.

It is an arithmetic number, because the mean of its divisors is an integer number (35538471).

Almost surely, 2^118461565 is an apocalyptic number.

It is an amenable number.

118461565 is a deficient number, since it is larger than the sum of its proper divisors (23692319).

118461565 is an equidigital number, since it uses as much as digits as its factorization.

118461565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23692318.

The product of its digits is 28800, while the sum is 37.

The square root of 118461565 is about 10884.0050073491. The cubic root of 118461565 is about 491.1255052534.

The spelling of 118461565 in words is "one hundred eighteen million, four hundred sixty-one thousand, five hundred sixty-five".