118089431 has 2 divisors, whose sum is σ = 118089432. Its totient is φ = 118089430.

The previous prime is 118089409. The next prime is 118089457. The reversal of 118089431 is 134980811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118089431 - 2²² = 113895127 is a prime.

It is a super-2 number, since 2×118089431² = 27890227427807522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 118089391 and 118089400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118082431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59044715 + 59044716.

It is an arithmetic number, because the mean of its divisors is an integer number (59044716).

Almost surely, 2^118089431 is an apocalyptic number.

118089431 is a deficient number, since it is larger than the sum of its proper divisors (1).

118089431 is an equidigital number, since it uses as much as digits as its factorization.

118089431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 118089431 is about 10866.8961069847. The cubic root of 118089431 is about 490.6106935177.

The spelling of 118089431 in words is "one hundred eighteen million, eighty-nine thousand, four hundred thirty-one".