45193817 has 4 divisors (see below), whose sum is σ = 46244880. Its totient is φ = 44142756.

The previous prime is 45193751. The next prime is 45193831. The reversal of 45193817 is 71839154.

45193817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45193817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45193867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525467 + ... + 525552.

It is an arithmetic number, because the mean of its divisors is an integer number (11561220).

Almost surely, 2^45193817 is an apocalyptic number.

It is an amenable number.

45193817 is a deficient number, since it is larger than the sum of its proper divisors (1051063).

45193817 is a wasteful number, since it uses less digits than its factorization.

45193817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051062.

The product of its digits is 30240, while the sum is 38.

The square root of 45193817 is about 6722.6346769700. The cubic root of 45193817 is about 356.1992556429.

The spelling of 45193817 in words is "forty-five million, one hundred ninety-three thousand, eight hundred seventeen".