118626399 has 6 divisors (see below), whose sum is σ = 171349256. Its totient is φ = 79084260.

The previous prime is 118626331. The next prime is 118626437. The reversal of 118626399 is 993626811.

It is a happy number.

118626399 is a `hidden beast` number, since 1 + 1 + 8 + 6 + 2 + 639 + 9 = 666.

It is not a de Polignac number, because 118626399 - 2¹⁷ = 118495327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118626199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6590347 + ... + 6590364.

Almost surely, 2^118626399 is an apocalyptic number.

118626399 is a deficient number, since it is larger than the sum of its proper divisors (52722857).

118626399 is a wasteful number, since it uses less digits than its factorization.

118626399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13180717 (or 13180714 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 118626399 is about 10891.5746795401. The cubic root of 118626399 is about 491.3531927808.

It can be divided in two parts, 118626 and 399, that added together give a square (119025 = 345²).

The spelling of 118626399 in words is "one hundred eighteen million, six hundred twenty-six thousand, three hundred ninety-nine".