90318117 has 4 divisors (see below), whose sum is σ = 120424160. Its totient is φ = 60212076.

The previous prime is 90318101. The next prime is 90318143. The reversal of 90318117 is 71181309.

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 not a de Polignac number, because 90318117 - 2⁴ = 90318101 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 (90318157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15053017 + ... + 15053022.

It is an arithmetic number, because the mean of its divisors is an integer number (30106040).

Almost surely, 2^90318117 is an apocalyptic number.

It is an amenable number.

90318117 is a deficient number, since it is larger than the sum of its proper divisors (30106043).

90318117 is a wasteful number, since it uses less digits than its factorization.

90318117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30106042.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 90318117 is about 9503.5844290457. The cubic root of 90318117 is about 448.6678578608.

The spelling of 90318117 in words is "ninety million, three hundred eighteen thousand, one hundred seventeen".