117137745 has 40 divisors (see below), whose sum is σ = 215682984. Its totient is φ = 60777216.

The previous prime is 117137737. The next prime is 117137753. The reversal of 117137745 is 547731711.

It is an interprime number because it is at equal distance from previous prime (117137737) and next prime (117137753).

It can be written as a sum of positive squares in 4 ways, for example, as 3779136 + 113358609 = 1944^2 + 10647^2 .

It is not a de Polignac number, because 117137745 - 2³ = 117137737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11077 + ... + 18893.

Almost surely, 2^117137745 is an apocalyptic number.

117137745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117137745 is a deficient number, since it is larger than the sum of its proper divisors (98545239).

117137745 is an equidigital number, since it uses as much as digits as its factorization.

117137745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871 (or 7862 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 117137745 is about 10823.0192183143. The cubic root of 117137745 is about 489.2891887237.

The spelling of 117137745 in words is "one hundred seventeen million, one hundred thirty-seven thousand, seven hundred forty-five".