117243654 has 16 divisors (see below), whose sum is σ = 255804480. Its totient is φ = 35528360.

The previous prime is 117243653. The next prime is 117243667. The reversal of 117243654 is 456342711.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117243653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888144 + ... + 888275.

It is an arithmetic number, because the mean of its divisors is an integer number (15987780).

Almost surely, 2^117243654 is an apocalyptic number.

117243654 is an abundant number, since it is smaller than the sum of its proper divisors (138560826).

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

117243654 is a wasteful number, since it uses less digits than its factorization.

117243654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776435.

The product of its digits is 20160, while the sum is 33.

The square root of 117243654 is about 10827.9108788353. The cubic root of 117243654 is about 489.4366063899.

The spelling of 117243654 in words is "one hundred seventeen million, two hundred forty-three thousand, six hundred fifty-four".