45537213 has 4 divisors (see below), whose sum is σ = 60716288. Its totient is φ = 30358140.

The previous prime is 45537211. The next prime is 45537223. The reversal of 45537213 is 31273554.

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 45537213 - 2¹ = 45537211 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 (45537211) 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, 7589533 + ... + 7589538.

It is an arithmetic number, because the mean of its divisors is an integer number (15179072).

Almost surely, 2^45537213 is an apocalyptic number.

It is an amenable number.

45537213 is a deficient number, since it is larger than the sum of its proper divisors (15179075).

45537213 is a wasteful number, since it uses less digits than its factorization.

45537213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15179074.

The product of its digits is 12600, while the sum is 30.

The square root of 45537213 is about 6748.1266289245. The cubic root of 45537213 is about 357.0991493864.

The spelling of 45537213 in words is "forty-five million, five hundred thirty-seven thousand, two hundred thirteen".