45313213 has 4 divisors (see below), whose sum is σ = 49432608. Its totient is φ = 41193820.

The previous prime is 45313207. The next prime is 45313223. The reversal of 45313213 is 31231354.

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 not a de Polignac number, because 45313213 - 2¹³ = 45305021 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 (45313223) 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, 2059681 + ... + 2059702.

It is an arithmetic number, because the mean of its divisors is an integer number (12358152).

Almost surely, 2^45313213 is an apocalyptic number.

It is an amenable number.

45313213 is a deficient number, since it is larger than the sum of its proper divisors (4119395).

45313213 is a wasteful number, since it uses less digits than its factorization.

45313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119394.

The product of its digits is 1080, while the sum is 22.

The square root of 45313213 is about 6731.5089690202. The cubic root of 45313213 is about 356.5126566954.

Adding to 45313213 its reverse (31231354), we get a palindrome (76544567).

It can be divided in two parts, 4531 and 3213, that added together give a square (7744 = 88²).

The spelling of 45313213 in words is "forty-five million, three hundred thirteen thousand, two hundred thirteen".