117438751 has 2 divisors, whose sum is σ = 117438752. Its totient is φ = 117438750.

The previous prime is 117438743. The next prime is 117438779. The reversal of 117438751 is 157834711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117438751 - 2³ = 117438743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117438751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117438701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58719375 + 58719376.

It is an arithmetic number, because the mean of its divisors is an integer number (58719376).

Almost surely, 2^117438751 is an apocalyptic number.

117438751 is a deficient number, since it is larger than the sum of its proper divisors (1).

117438751 is an equidigital number, since it uses as much as digits as its factorization.

117438751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 37.

The square root of 117438751 is about 10836.9161203730. The cubic root of 117438751 is about 489.7079350702.

The spelling of 117438751 in words is "one hundred seventeen million, four hundred thirty-eight thousand, seven hundred fifty-one".