90184313 has 4 divisors (see below), whose sum is σ = 90426468. Its totient is φ = 89942160.

The previous prime is 90184277. The next prime is 90184319. The reversal of 90184313 is 31348109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31348109 = 13 ⋅2411393.

It can be written as a sum of positive squares in 2 ways, for example, as 72812089 + 17372224 = 8533^2 + 4168^2 .

It is a cyclic number.

It is not a de Polignac number, because 90184313 - 2⁶ = 90184249 is a prime.

It is a super-2 number, since 2×90184313² = 16266420622563938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90184319) 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, 120518 + ... + 121263.

It is an arithmetic number, because the mean of its divisors is an integer number (22606617).

Almost surely, 2^90184313 is an apocalyptic number.

It is an amenable number.

90184313 is a deficient number, since it is larger than the sum of its proper divisors (242155).

90184313 is a wasteful number, since it uses less digits than its factorization.

90184313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242154.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 90184313 is about 9496.5421601760. The cubic root of 90184313 is about 448.4461850058.

It can be divided in two parts, 9018 and 4313, that added together give a palindrome (13331).

The spelling of 90184313 in words is "ninety million, one hundred eighty-four thousand, three hundred thirteen".