99145755 has 64 divisors (see below), whose sum is σ = 189112320. Its totient is φ = 49154688.

The previous prime is 99145699. The next prime is 99145757. The reversal of 99145755 is 55754199.

It is not a de Polignac number, because 99145755 - 2⁶ = 99145691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 99145755.

It is not an unprimeable number, because it can be changed into a prime (99145757) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114454 + ... + 115316.

It is an arithmetic number, because the mean of its divisors is an integer number (2954880).

Almost surely, 2^99145755 is an apocalyptic number.

99145755 is a deficient number, since it is larger than the sum of its proper divisors (89966565).

99145755 is a wasteful number, since it uses less digits than its factorization.

99145755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 931 counting only the distinct ones).

The product of its digits is 283500, while the sum is 45.

The square root of 99145755 is about 9957.1961414848. The cubic root of 99145755 is about 462.8334172387.

The spelling of 99145755 in words is "ninety-nine million, one hundred forty-five thousand, seven hundred fifty-five".