117225631 has 4 divisors (see below), whose sum is σ = 118638072. Its totient is φ = 115813192.

The previous prime is 117225629. The next prime is 117225637. The reversal of 117225631 is 136522711.

It is a happy number.

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 117225631 - 2¹ = 117225629 is a prime.

It is a super-2 number, since 2×117225631² = 27483697126696322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117225631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117225637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706096 + ... + 706261.

It is an arithmetic number, because the mean of its divisors is an integer number (29659518).

Almost surely, 2^117225631 is an apocalyptic number.

117225631 is a deficient number, since it is larger than the sum of its proper divisors (1412441).

117225631 is an equidigital number, since it uses as much as digits as its factorization.

117225631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412440.

The product of its digits is 2520, while the sum is 28.

The square root of 117225631 is about 10827.0785995115. The cubic root of 117225631 is about 489.4115259479.

The spelling of 117225631 in words is "one hundred seventeen million, two hundred twenty-five thousand, six hundred thirty-one".