118130427 has 16 divisors (see below), whose sum is σ = 181044000. Its totient is φ = 76037472.

The previous prime is 118130423. The next prime is 118130437. The reversal of 118130427 is 724031811.

It is not a de Polignac number, because 118130427 - 2² = 118130423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 118130427.

It is not an unprimeable number, because it can be changed into a prime (118130423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74652 + ... + 76217.

It is an arithmetic number, because the mean of its divisors is an integer number (11315250).

Almost surely, 2^118130427 is an apocalyptic number.

118130427 is a deficient number, since it is larger than the sum of its proper divisors (62913573).

118130427 is a wasteful number, since it uses less digits than its factorization.

118130427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150907 (or 150901 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 118130427 is about 10868.7822224939. The cubic root of 118130427 is about 490.6674605198.

The spelling of 118130427 in words is "one hundred eighteen million, one hundred thirty thousand, four hundred twenty-seven".