99145155 has 16 divisors (see below), whose sum is σ = 160269984. Its totient is φ = 52331520.

The previous prime is 99145153. The next prime is 99145213. The reversal of 99145155 is 55154199.

It is not a de Polignac number, because 99145155 - 2¹ = 99145153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99145153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32616 + ... + 35525.

It is an arithmetic number, because the mean of its divisors is an integer number (10016874).

Almost surely, 2^99145155 is an apocalyptic number.

99145155 is a deficient number, since it is larger than the sum of its proper divisors (61124829).

99145155 is a wasteful number, since it uses less digits than its factorization.

99145155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68246.

The product of its digits is 40500, while the sum is 39.

The square root of 99145155 is about 9957.1660124756. The cubic root of 99145155 is about 462.8324835944.

The spelling of 99145155 in words is "ninety-nine million, one hundred forty-five thousand, one hundred fifty-five".