45195939 has 6 divisors (see below), whose sum is σ = 65283036.
Its totient is φ = 30130620.
The previous prime is 45195919. The next prime is 45195971. The reversal of 45195939 is 93959154.
It is a happy number.
45195939 is a `hidden beast` number, since 4 + 51 + 9 + 593 + 9 = 666.
It is not a de Polignac number, because 45195939 - 211 = 45193891 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 45195894 and 45195903.
It is not an unprimeable number, because it can be changed into a prime (45195919) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2510877 + ... + 2510894.
It is an arithmetic number, because the mean of its divisors is an integer number (10880506).
Almost surely, 245195939 is an apocalyptic number.
45195939 is a deficient number, since it is larger than the sum of its proper divisors (20087097).
45195939 is a wasteful number, since it uses less digits than its factorization.
45195939 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5021777 (or 5021774 counting only the distinct ones).
The product of its digits is 218700, while the sum is 45.
The square root of 45195939 is about 6722.7925001446.
The cubic root of 45195939 is about 356.2048304689.
The spelling of 45195939 in words is "forty-five million, one hundred ninety-five thousand, nine hundred thirty-nine".