45105219 has 12 divisors (see below), whose sum is σ = 65228592. Its totient is φ = 30034800.

The previous prime is 45105211. The next prime is 45105239. The reversal of 45105219 is 91250154.

It is not a de Polignac number, because 45105219 - 2³ = 45105211 is a prime.

It is a super-2 number, since 2×45105219² = 4068961562075922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 45105192 and 45105201.

It is not an unprimeable number, because it can be changed into a prime (45105211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6849 + ... + 11709.

It is an arithmetic number, because the mean of its divisors is an integer number (5435716).

Almost surely, 2^45105219 is an apocalyptic number.

45105219 is a deficient number, since it is larger than the sum of its proper divisors (20123373).

45105219 is a wasteful number, since it uses less digits than its factorization.

45105219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898 (or 5895 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 45105219 is about 6716.0419146995. The cubic root of 45105219 is about 355.9663389248.

The spelling of 45105219 in words is "forty-five million, one hundred five thousand, two hundred nineteen".