45053749 has 4 divisors (see below), whose sum is σ = 48519436. Its totient is φ = 41588064.

The previous prime is 45053737. The next prime is 45053759. The reversal of 45053749 is 94735054.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20994724 + 24059025 = 4582^2 + 4905^2 .

It is a cyclic number.

It is not a de Polignac number, because 45053749 - 2⁵ = 45053717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45053759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1732824 + ... + 1732849.

It is an arithmetic number, because the mean of its divisors is an integer number (12129859).

Almost surely, 2^45053749 is an apocalyptic number.

It is an amenable number.

45053749 is a deficient number, since it is larger than the sum of its proper divisors (3465687).

45053749 is a wasteful number, since it uses less digits than its factorization.

45053749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465686.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 45053749 is about 6712.2089508596. The cubic root of 45053749 is about 355.8308885174.

The spelling of 45053749 in words is "forty-five million, fifty-three thousand, seven hundred forty-nine".