15198149 has 4 divisors (see below), whose sum is σ = 15300300. Its totient is φ = 15096000.

The previous prime is 15198143. The next prime is 15198179. The reversal of 15198149 is 94189151.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1188100 + 14010049 = 1090^2 + 3743^2 .

It is a cyclic number.

It is not a de Polignac number, because 15198149 - 2⁸ = 15197893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15198143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50852 + ... + 51149.

It is an arithmetic number, because the mean of its divisors is an integer number (3825075).

Almost surely, 2^15198149 is an apocalyptic number.

It is an amenable number.

15198149 is a deficient number, since it is larger than the sum of its proper divisors (102151).

15198149 is a wasteful number, since it uses less digits than its factorization.

15198149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102150.

The product of its digits is 12960, while the sum is 38.

The square root of 15198149 is about 3898.4803449549. The cubic root of 15198149 is about 247.7024103474.

The spelling of 15198149 in words is "fifteen million, one hundred ninety-eight thousand, one hundred forty-nine".