117245856 has 96 divisors (see below), whose sum is σ = 378822528. Its totient is φ = 30919680.

The previous prime is 117245839. The next prime is 117245861. The reversal of 117245856 is 658542711.

117245856 = T₃₂₈ + T₃₂₉ + ... + T₉₀₃.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2026 + ... + 15446.

It is an arithmetic number, because the mean of its divisors is an integer number (3946068).

Almost surely, 2^117245856 is an apocalyptic number.

117245856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117245856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189411264).

117245856 is an abundant number, since it is smaller than the sum of its proper divisors (261576672).

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

117245856 is a wasteful number, since it uses less digits than its factorization.

117245856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13454 (or 13446 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 117245856 is about 10828.0125600223. The cubic root of 117245856 is about 489.4396704723.

The spelling of 117245856 in words is "one hundred seventeen million, two hundred forty-five thousand, eight hundred fifty-six".