117521514 has 96 divisors (see below), whose sum is σ = 291695040. Its totient is φ = 33868800.

The previous prime is 117521497. The next prime is 117521531. The reversal of 117521514 is 415125711.

It is an interprime number because it is at equal distance from previous prime (117521497) and next prime (117521531).

It is a super-2 number, since 2×117521514² = 27622612505704392, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 556869 + ... + 557079.

It is an arithmetic number, because the mean of its divisors is an integer number (3038490).

Almost surely, 2^117521514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117521514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145847520).

117521514 is an abundant number, since it is smaller than the sum of its proper divisors (174173526).

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

117521514 is a wasteful number, since it uses less digits than its factorization.

117521514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 353 counting only the distinct ones).

The product of its digits is 1400, while the sum is 27.

The square root of 117521514 is about 10840.7340157390. The cubic root of 117521514 is about 489.8229458889.

The spelling of 117521514 in words is "one hundred seventeen million, five hundred twenty-one thousand, five hundred fourteen".