45179777 has 4 divisors (see below), whose sum is σ = 47557680. Its totient is φ = 42801876.

The previous prime is 45179753. The next prime is 45179789. The reversal of 45179777 is 77797154.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77797154 = 2 ⋅38898577.

It is a cyclic number.

It is not a de Polignac number, because 45179777 - 2¹⁸ = 44917633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45179377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188923 + ... + 1188960.

It is an arithmetic number, because the mean of its divisors is an integer number (11889420).

Almost surely, 2^45179777 is an apocalyptic number.

It is an amenable number.

45179777 is a deficient number, since it is larger than the sum of its proper divisors (2377903).

45179777 is a wasteful number, since it uses less digits than its factorization.

45179777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377902.

The product of its digits is 432180, while the sum is 47.

The square root of 45179777 is about 6721.5903624068. The cubic root of 45179777 is about 356.1623659690.

The spelling of 45179777 in words is "forty-five million, one hundred seventy-nine thousand, seven hundred seventy-seven".