45785919 has 4 divisors (see below), whose sum is σ = 61047896. Its totient is φ = 30523944.

The previous prime is 45785911. The next prime is 45785923. The reversal of 45785919 is 91958754.

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

It is not a de Polignac number, because 45785919 - 2³ = 45785911 is a prime.

It is a super-2 number, since 2×45785919² = 4192700757349122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45785911) 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, 7630984 + ... + 7630989.

It is an arithmetic number, because the mean of its divisors is an integer number (15261974).

Almost surely, 2^45785919 is an apocalyptic number.

45785919 is a deficient number, since it is larger than the sum of its proper divisors (15261977).

45785919 is a wasteful number, since it uses less digits than its factorization.

45785919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15261976.

The product of its digits is 453600, while the sum is 48.

The square root of 45785919 is about 6766.5293171611. The cubic root of 45785919 is about 357.7480802100.

The spelling of 45785919 in words is "forty-five million, seven hundred eighty-five thousand, nine hundred nineteen".