45749999 has 4 divisors (see below), whose sum is σ = 45782136. Its totient is φ = 45717864.

The previous prime is 45749983. The next prime is 45750007. The reversal of 45749999 is 99994754.

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

It is a cyclic number.

It is not a de Polignac number, because 45749999 - 2⁴ = 45749983 is a prime.

It is a Duffinian number.

45749999 is a modest number, since divided by 9999 gives 4574 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45749909) 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, 13829 + ... + 16814.

It is an arithmetic number, because the mean of its divisors is an integer number (11445534).

Almost surely, 2^45749999 is an apocalyptic number.

45749999 is a deficient number, since it is larger than the sum of its proper divisors (32137).

45749999 is a wasteful number, since it uses less digits than its factorization.

45749999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32136.

The product of its digits is 3674160, while the sum is 56.

The square root of 45749999 is about 6763.8745553122. The cubic root of 45749999 is about 357.6545021462.

The spelling of 45749999 in words is "forty-five million, seven hundred forty-nine thousand, nine hundred ninety-nine".