45212519 has 8 divisors (see below), whose sum is σ = 49373712. Its totient is φ = 41059840.

The previous prime is 45212513. The next prime is 45212521. The reversal of 45212519 is 91521254.

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

It is a cyclic number.

It is not a de Polignac number, because 45212519 - 2⁸ = 45212263 is a prime.

It is a super-2 number, since 2×45212519² = 4088343748650722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45212491 and 45212500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45212513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15047 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (6171714).

Almost surely, 2^45212519 is an apocalyptic number.

45212519 is a deficient number, since it is larger than the sum of its proper divisors (4161193).

45212519 is a wasteful number, since it uses less digits than its factorization.

45212519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257.

The product of its digits is 3600, while the sum is 29.

The square root of 45212519 is about 6724.0255056030. The cubic root of 45212519 is about 356.2483827155.

The spelling of 45212519 in words is "forty-five million, two hundred twelve thousand, five hundred nineteen".