15198081 has 8 divisors (see below), whose sum is σ = 21330720. Its totient is φ = 9598752.

The previous prime is 15198077. The next prime is 15198097. The reversal of 15198081 is 18089151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15198081 - 2² = 15198077 is a prime.

It is a super-2 number, since 2×15198081² = 461963332165122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15198011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133260 + ... + 133373.

It is an arithmetic number, because the mean of its divisors is an integer number (2666340).

Almost surely, 2^15198081 is an apocalyptic number.

It is an amenable number.

15198081 is a deficient number, since it is larger than the sum of its proper divisors (6132639).

15198081 is a wasteful number, since it uses less digits than its factorization.

15198081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266655.

The product of its (nonzero) digits is 2880, while the sum is 33.

The square root of 15198081 is about 3898.4716235982. The cubic root of 15198081 is about 247.7020409210.

The spelling of 15198081 in words is "fifteen million, one hundred ninety-eight thousand, eighty-one".