117517950 has 72 divisors (see below), whose sum is σ = 344448936. Its totient is φ = 28488000.

The previous prime is 117517937. The next prime is 117517963. The reversal of 117517950 is 59715711.

It is an interprime number because it is at equal distance from previous prime (117517937) and next prime (117517963).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6921 + ... + 16820.

It is an arithmetic number, because the mean of its divisors is an integer number (4784013).

Almost surely, 2^117517950 is an apocalyptic number.

117517950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117517950 is an abundant number, since it is smaller than the sum of its proper divisors (226930986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117517950 is a wasteful number, since it uses less digits than its factorization.

117517950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23770 (or 23762 counting only the distinct ones).

The product of its (nonzero) digits is 11025, while the sum is 36.

The square root of 117517950 is about 10840.5696344795. The cubic root of 117517950 is about 489.8179943228.

It can be divided in two parts, 11751 and 7950, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 117517950 in words is "one hundred seventeen million, five hundred seventeen thousand, nine hundred fifty".