45012515 has 16 divisors (see below), whose sum is σ = 57371328. Its totient is φ = 33785856.

The previous prime is 45012491. The next prime is 45012523. The reversal of 45012515 is 51521054.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45012515 - 2²⁰ = 43963939 is a prime.

It is a super-2 number, since 2×45012515² = 4052253013250450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36194 + ... + 37416.

It is an arithmetic number, because the mean of its divisors is an integer number (3585708).

Almost surely, 2^45012515 is an apocalyptic number.

45012515 is a deficient number, since it is larger than the sum of its proper divisors (12358813).

45012515 is a wasteful number, since it uses less digits than its factorization.

45012515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 45012515 is about 6709.1366806766. The cubic root of 45012515 is about 355.7223011110.

Adding to 45012515 its reverse (51521054), we get a palindrome (96533569).

The spelling of 45012515 in words is "forty-five million, twelve thousand, five hundred fifteen".