45515019 has 32 divisors (see below), whose sum is σ = 68302080. Its totient is φ = 26726400.

The previous prime is 45515011. The next prime is 45515023. The reversal of 45515019 is 91051554.

It is not a de Polignac number, because 45515019 - 2³ = 45515011 is a prime.

It is a super-2 number, since 2×45515019² = 4143233909140722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45515011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188739 + ... + 188979.

It is an arithmetic number, because the mean of its divisors is an integer number (2134440).

Almost surely, 2^45515019 is an apocalyptic number.

45515019 is a deficient number, since it is larger than the sum of its proper divisors (22787061).

45515019 is a wasteful number, since it uses less digits than its factorization.

45515019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 45515019 is about 6746.4819721096. The cubic root of 45515019 is about 357.0411254398.

The spelling of 45515019 in words is "forty-five million, five hundred fifteen thousand, nineteen".