45519419 has 4 divisors (see below), whose sum is σ = 49657560. Its totient is φ = 41381280.

The previous prime is 45519401. The next prime is 45519427. The reversal of 45519419 is 91491554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45519419 is a prime.

It is a super-2 number, since 2×45519419² = 4144035012195122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45519469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2069054 + ... + 2069075.

It is an arithmetic number, because the mean of its divisors is an integer number (12414390).

Almost surely, 2^45519419 is an apocalyptic number.

45519419 is a deficient number, since it is larger than the sum of its proper divisors (4138141).

45519419 is a wasteful number, since it uses less digits than its factorization.

45519419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4138140.

The product of its digits is 32400, while the sum is 38.

The square root of 45519419 is about 6746.8080601126. The cubic root of 45519419 is about 357.0526302893.

The spelling of 45519419 in words is "forty-five million, five hundred nineteen thousand, four hundred nineteen".