118898551 has 2 divisors, whose sum is σ = 118898552. Its totient is φ = 118898550.

The previous prime is 118898539. The next prime is 118898567. The reversal of 118898551 is 155898811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118898551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118898581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59449275 + 59449276.

It is an arithmetic number, because the mean of its divisors is an integer number (59449276).

Almost surely, 2^118898551 is an apocalyptic number.

118898551 is a deficient number, since it is larger than the sum of its proper divisors (1).

118898551 is an equidigital number, since it uses as much as digits as its factorization.

118898551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 46.

The square root of 118898551 is about 10904.0612158957. The cubic root of 118898551 is about 491.7286590159.

The spelling of 118898551 in words is "one hundred eighteen million, eight hundred ninety-eight thousand, five hundred fifty-one".