117972453 has 16 divisors (see below), whose sum is σ = 164604416. Its totient is φ = 75064320.

The previous prime is 117972433. The next prime is 117972473. The reversal of 117972453 is 354279711.

It is an interprime number because it is at equal distance from previous prime (117972433) and next prime (117972473).

It is not a de Polignac number, because 117972453 - 2²² = 113778149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117972403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1900 + ... + 15477.

It is an arithmetic number, because the mean of its divisors is an integer number (10287776).

Almost surely, 2^117972453 is an apocalyptic number.

It is an amenable number.

117972453 is a deficient number, since it is larger than the sum of its proper divisors (46631963).

117972453 is a wasteful number, since it uses less digits than its factorization.

117972453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17484.

The product of its digits is 52920, while the sum is 39.

The square root of 117972453 is about 10861.5124637409. The cubic root of 117972453 is about 490.4486422716.

The spelling of 117972453 in words is "one hundred seventeen million, nine hundred seventy-two thousand, four hundred fifty-three".