45618749 has 4 divisors (see below), whose sum is σ = 49765920. Its totient is φ = 41471580.

The previous prime is 45618737. The next prime is 45618779. The reversal of 45618749 is 94781654.

45618749 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 45618749 - 2⁴ = 45618733 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45618719) 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, 2073569 + ... + 2073590.

It is an arithmetic number, because the mean of its divisors is an integer number (12441480).

Almost surely, 2^45618749 is an apocalyptic number.

It is an amenable number.

45618749 is a deficient number, since it is larger than the sum of its proper divisors (4147171).

45618749 is a wasteful number, since it uses less digits than its factorization.

45618749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147170.

The product of its digits is 241920, while the sum is 44.

The square root of 45618749 is about 6754.1653074233. The cubic root of 45618749 is about 357.3121552161.

The spelling of 45618749 in words is "forty-five million, six hundred eighteen thousand, seven hundred forty-nine".