15275397 has 8 divisors (see below), whose sum is σ = 20671456. Its totient is φ = 10031472.

The previous prime is 15275383. The next prime is 15275419. The reversal of 15275397 is 79357251.

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

It is a de Polignac number, because none of the positive numbers 2^k-15275397 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 (15275327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37798 + ... + 38199.

It is an arithmetic number, because the mean of its divisors is an integer number (2583932).

Almost surely, 2^15275397 is an apocalyptic number.

It is an amenable number.

15275397 is a deficient number, since it is larger than the sum of its proper divisors (5396059).

15275397 is an equidigital number, since it uses as much as digits as its factorization.

15275397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76067.

The product of its digits is 66150, while the sum is 39.

The square root of 15275397 is about 3908.3752378706. The cubic root of 15275397 is about 248.1213690100.

The spelling of 15275397 in words is "fifteen million, two hundred seventy-five thousand, three hundred ninety-seven".