45313331 has 4 divisors (see below), whose sum is σ = 51786672. Its totient is φ = 38839992.

The previous prime is 45313321. The next prime is 45313337. The reversal of 45313331 is 13331354.

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 45313331 - 2¹⁰ = 45312307 is a prime.

It is a super-2 number, since 2×45313331² = 4106595932631122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45313297 and 45313306.

It is not an unprimeable number, because it can be changed into a prime (45313337) 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, 3236660 + ... + 3236673.

It is an arithmetic number, because the mean of its divisors is an integer number (12946668).

Almost surely, 2^45313331 is an apocalyptic number.

45313331 is a deficient number, since it is larger than the sum of its proper divisors (6473341).

45313331 is an equidigital number, since it uses as much as digits as its factorization.

45313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6473340.

The product of its digits is 1620, while the sum is 23.

The square root of 45313331 is about 6731.5177337655. The cubic root of 45313331 is about 356.5129661596.

Adding to 45313331 its reverse (13331354), we get a palindrome (58644685).

The spelling of 45313331 in words is "forty-five million, three hundred thirteen thousand, three hundred thirty-one".