45099839 has 6 divisors (see below), whose sum is σ = 45792504. Its totient is φ = 44408840.

The previous prime is 45099829. The next prime is 45099841. The reversal of 45099839 is 93899054.

It is not a de Polignac number, because 45099839 - 2⁸ = 45099583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45099793 and 45099802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45099829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56189 + ... + 56985.

It is an arithmetic number, because the mean of its divisors is an integer number (7632084).

Almost surely, 2^45099839 is an apocalyptic number.

45099839 is a deficient number, since it is larger than the sum of its proper divisors (692665).

45099839 is an frugal number, since it uses more digits than its factorization.

45099839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 45099839 is about 6715.6413692216. The cubic root of 45099839 is about 355.9521855364.

The spelling of 45099839 in words is "forty-five million, ninety-nine thousand, eight hundred thirty-nine".