45516213 has 12 divisors (see below), whose sum is σ = 65863200. Its totient is φ = 30289896.

The previous prime is 45516203. The next prime is 45516217. The reversal of 45516213 is 31261554.

45516213 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 45516213 - 2⁴ = 45516197 is a prime.

It is a super-2 number, since 2×45516213² = 4143451291722738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45516217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1170 + ... + 9612.

It is an arithmetic number, because the mean of its divisors is an integer number (5488600).

Almost surely, 2^45516213 is an apocalyptic number.

It is an amenable number.

45516213 is a deficient number, since it is larger than the sum of its proper divisors (20346987).

45516213 is a wasteful number, since it uses less digits than its factorization.

45516213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9048 (or 9045 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 45516213 is about 6746.5704620941. The cubic root of 45516213 is about 357.0442475109.

Adding to 45516213 its reverse (31261554), we get a palindrome (76777767).

The spelling of 45516213 in words is "forty-five million, five hundred sixteen thousand, two hundred thirteen".