45122515 has 8 divisors (see below), whose sum is σ = 55893888. Its totient is φ = 34933440.

The previous prime is 45122507. The next prime is 45122531. The reversal of 45122515 is 51522154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45122515 - 2³ = 45122507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45122515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145402 + ... + 145711.

It is an arithmetic number, because the mean of its divisors is an integer number (6986736).

Almost surely, 2^45122515 is an apocalyptic number.

45122515 is a deficient number, since it is larger than the sum of its proper divisors (10771373).

45122515 is a wasteful number, since it uses less digits than its factorization.

45122515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291149.

The product of its digits is 2000, while the sum is 25.

The square root of 45122515 is about 6717.3294544782. The cubic root of 45122515 is about 356.0118326034.

Adding to 45122515 its reverse (51522154), we get a palindrome (96644669).

The spelling of 45122515 in words is "forty-five million, one hundred twenty-two thousand, five hundred fifteen".