99749545 has 24 divisors (see below), whose sum is σ = 139765824. Its totient is φ = 68342064.

The previous prime is 99749539. The next prime is 99749567. The reversal of 99749545 is 54594799.

It is not a de Polignac number, because 99749545 - 2⁵ = 99749513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99749492 and 99749501.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83442 + ... + 84628.

It is an arithmetic number, because the mean of its divisors is an integer number (5823576).

Almost surely, 2^99749545 is an apocalyptic number.

It is an amenable number.

99749545 is a deficient number, since it is larger than the sum of its proper divisors (40016279).

99749545 is an frugal number, since it uses more digits than its factorization.

99749545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227 (or 1199 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 52.

The square root of 99749545 is about 9987.4693992022. The cubic root of 99749545 is about 463.7710563597.

The spelling of 99749545 in words is "ninety-nine million, seven hundred forty-nine thousand, five hundred forty-five".