45239777 has 4 divisors (see below), whose sum is σ = 49352496. Its totient is φ = 41127060.

The previous prime is 45239773. The next prime is 45239783. The reversal of 45239777 is 77793254.

45239777 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 not a de Polignac number, because 45239777 - 2² = 45239773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45239773) 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, 2056343 + ... + 2056364.

It is an arithmetic number, because the mean of its divisors is an integer number (12338124).

Almost surely, 2^45239777 is an apocalyptic number.

It is an amenable number.

45239777 is a deficient number, since it is larger than the sum of its proper divisors (4112719).

45239777 is a wasteful number, since it uses less digits than its factorization.

45239777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4112718.

The product of its digits is 370440, while the sum is 44.

The square root of 45239777 is about 6726.0521110084. The cubic root of 45239777 is about 356.3199607343.

The spelling of 45239777 in words is "forty-five million, two hundred thirty-nine thousand, seven hundred seventy-seven".