118238761 has 4 divisors (see below), whose sum is σ = 118699092. Its totient is φ = 117778432.

The previous prime is 118238759. The next prime is 118238803. The reversal of 118238761 is 167832811.

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 104960025 + 13278736 = 10245^2 + 3644^2 .

It is a cyclic number.

It is not a de Polignac number, because 118238761 - 2¹ = 118238759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118238761.

It is not an unprimeable number, because it can be changed into a prime (118238161) 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, 229780 + ... + 230293.

It is an arithmetic number, because the mean of its divisors is an integer number (29674773).

Almost surely, 2^118238761 is an apocalyptic number.

It is an amenable number.

118238761 is a deficient number, since it is larger than the sum of its proper divisors (460331).

118238761 is an equidigital number, since it uses as much as digits as its factorization.

118238761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460330.

The product of its digits is 16128, while the sum is 37.

The square root of 118238761 is about 10873.7648034156. The cubic root of 118238761 is about 490.8174070070.

The spelling of 118238761 in words is "one hundred eighteen million, two hundred thirty-eight thousand, seven hundred sixty-one".