117045553 has 4 divisors (see below), whose sum is σ = 120821248. Its totient is φ = 113269860.

The previous prime is 117045547. The next prime is 117045563. The reversal of 117045553 is 355540711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117045553 is a prime.

It is a super-2 number, since 2×117045553² = 27399322954151618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 3775663 = 117045553 / (1 + 1 + 7 + 0 + 4 + 5 + 5 + 5 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117045503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887801 + ... + 1887862.

It is an arithmetic number, because the mean of its divisors is an integer number (30205312).

Almost surely, 2^117045553 is an apocalyptic number.

It is an amenable number.

117045553 is a deficient number, since it is larger than the sum of its proper divisors (3775695).

117045553 is an equidigital number, since it uses as much as digits as its factorization.

117045553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775694.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 117045553 is about 10818.7593096436. The cubic root of 117045553 is about 489.1607917721.

The spelling of 117045553 in words is "one hundred seventeen million, forty-five thousand, five hundred fifty-three".