18148299 has 32 divisors (see below), whose sum is σ = 28514304. Its totient is φ = 10160640.

The previous prime is 18148271. The next prime is 18148303. The reversal of 18148299 is 99284181.

It is not a de Polignac number, because 18148299 - 2²⁰ = 17099723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18148299.

It is not an unprimeable number, because it can be changed into a prime (18148259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20112 + ... + 20994.

It is an arithmetic number, because the mean of its divisors is an integer number (891072).

Almost surely, 2^18148299 is an apocalyptic number.

18148299 is a deficient number, since it is larger than the sum of its proper divisors (10366005).

18148299 is a wasteful number, since it uses less digits than its factorization.

18148299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947.

The product of its digits is 41472, while the sum is 42.

The square root of 18148299 is about 4260.0820414635. The cubic root of 18148299 is about 262.7919002297.

The spelling of 18148299 in words is "eighteen million, one hundred forty-eight thousand, two hundred ninety-nine".