45515229 has 16 divisors (see below), whose sum is σ = 63483264. Its totient is φ = 28952000.

The previous prime is 45515219. The next prime is 45515233. The reversal of 45515229 is 92251554.

It is a cyclic number.

It is not a de Polignac number, because 45515229 - 2⁷ = 45515101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45515229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47899 + ... + 48839.

It is an arithmetic number, because the mean of its divisors is an integer number (3967704).

Almost surely, 2^45515229 is an apocalyptic number.

It is an amenable number.

45515229 is a deficient number, since it is larger than the sum of its proper divisors (17968035).

45515229 is a wasteful number, since it uses less digits than its factorization.

45515229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668.

The product of its digits is 18000, while the sum is 33.

The square root of 45515229 is about 6746.4975357588. The cubic root of 45515229 is about 357.0416745518.

The spelling of 45515229 in words is "forty-five million, five hundred fifteen thousand, two hundred twenty-nine".