118623959 has 2 divisors, whose sum is σ = 118623960. Its totient is φ = 118623958.

The previous prime is 118623931. The next prime is 118623979. The reversal of 118623959 is 959326811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118623959 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118623929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59311979 + 59311980.

It is an arithmetic number, because the mean of its divisors is an integer number (59311980).

Almost surely, 2^118623959 is an apocalyptic number.

118623959 is a deficient number, since it is larger than the sum of its proper divisors (1).

118623959 is an equidigital number, since it uses as much as digits as its factorization.

118623959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 118623959 is about 10891.4626657763. The cubic root of 118623959 is about 491.3498239129.

The spelling of 118623959 in words is "one hundred eighteen million, six hundred twenty-three thousand, nine hundred fifty-nine".