117651503 has 4 divisors (see below), whose sum is σ = 118973520. Its totient is φ = 116329488.

The previous prime is 117651431. The next prime is 117651511. The reversal of 117651503 is 305156711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117651503 - 2¹⁶ = 117585967 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 (117651563) 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 3 ways as a sum of consecutive naturals, for example, 660875 + ... + 661052.

It is an arithmetic number, because the mean of its divisors is an integer number (29743380).

Almost surely, 2^117651503 is an apocalyptic number.

117651503 is a deficient number, since it is larger than the sum of its proper divisors (1322017).

117651503 is an equidigital number, since it uses as much as digits as its factorization.

117651503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322016.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 117651503 is about 10846.7277554108. The cubic root of 117651503 is about 490.0034749164.

The spelling of 117651503 in words is "one hundred seventeen million, six hundred fifty-one thousand, five hundred three".