45121015 has 16 divisors (see below), whose sum is σ = 54946080. Its totient is φ = 35568000.

The previous prime is 45121007. The next prime is 45121039. The reversal of 45121015 is 51012154.

It is not a de Polignac number, because 45121015 - 2³ = 45121007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45120983 and 45121001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179640 + ... + 179890.

It is an arithmetic number, because the mean of its divisors is an integer number (3434130).

Almost surely, 2^45121015 is an apocalyptic number.

45121015 is a deficient number, since it is larger than the sum of its proper divisors (9825065).

45121015 is a wasteful number, since it uses less digits than its factorization.

45121015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 45121015 is about 6717.2178020368. The cubic root of 45121015 is about 356.0078876130.

Adding to 45121015 its reverse (51012154), we get a palindrome (96133169).

The spelling of 45121015 in words is "forty-five million, one hundred twenty-one thousand, fifteen".