15139197 has 16 divisors (see below), whose sum is σ = 23748480. Its totient is φ = 9498816.

The previous prime is 15139177. The next prime is 15139237. The reversal of 15139197 is 79193151.

It is not a de Polignac number, because 15139197 - 2⁸ = 15138941 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15139177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16033 + ... + 16950.

It is an arithmetic number, because the mean of its divisors is an integer number (1484280).

Almost surely, 2^15139197 is an apocalyptic number.

15139197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

15139197 is a deficient number, since it is larger than the sum of its proper divisors (8609283).

15139197 is a wasteful number, since it uses less digits than its factorization.

15139197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33009 (or 33003 counting only the distinct ones).

The product of its digits is 8505, while the sum is 36.

The square root of 15139197 is about 3890.9121038646. The cubic root of 15139197 is about 247.3817249387.

The spelling of 15139197 in words is "fifteen million, one hundred thirty-nine thousand, one hundred ninety-seven".