45815245 has 24 divisors (see below), whose sum is σ = 65528568. Its totient is φ = 30643200.

The previous prime is 45815243. The next prime is 45815249. The reversal of 45815245 is 54251854.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 90601 + 45724644 = 301^2 + 6762^2 .

It is not a de Polignac number, because 45815245 - 2¹ = 45815243 is a prime.

It is a super-5 number, since 5×45815245⁵ (a number of 40 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45815245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45815243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7765 + ... + 12325.

It is an arithmetic number, because the mean of its divisors is an integer number (2730357).

Almost surely, 2^45815245 is an apocalyptic number.

It is an amenable number.

45815245 is a deficient number, since it is larger than the sum of its proper divisors (19713323).

45815245 is a wasteful number, since it uses less digits than its factorization.

45815245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621 (or 4614 counting only the distinct ones).

The product of its digits is 32000, while the sum is 34.

The square root of 45815245 is about 6768.6959600798. The cubic root of 45815245 is about 357.8244434335.

The spelling of 45815245 in words is "forty-five million, eight hundred fifteen thousand, two hundred forty-five".