118307645 has 4 divisors (see below), whose sum is σ = 141969180. Its totient is φ = 94646112.

The previous prime is 118307621. The next prime is 118307659. The reversal of 118307645 is 546703811.

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 13675204 + 104632441 = 3698^2 + 10229^2 .

It is a cyclic number.

It is not a de Polignac number, because 118307645 - 2²² = 114113341 is a prime.

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, 11830760 + ... + 11830769.

It is an arithmetic number, because the mean of its divisors is an integer number (35492295).

Almost surely, 2^118307645 is an apocalyptic number.

It is an amenable number.

118307645 is a deficient number, since it is larger than the sum of its proper divisors (23661535).

118307645 is an equidigital number, since it uses as much as digits as its factorization.

118307645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23661534.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 118307645 is about 10876.9317824467. The cubic root of 118307645 is about 490.9127026120.

The spelling of 118307645 in words is "one hundred eighteen million, three hundred seven thousand, six hundred forty-five".