15274397 has 2 divisors, whose sum is σ = 15274398. Its totient is φ = 15274396.

The previous prime is 15274393. The next prime is 15274403. The reversal of 15274397 is 79347251.

15274397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12538681 + 2735716 = 3541^2 + 1654^2 .

It is an emirp because it is prime and its reverse (79347251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15274397 - 2² = 15274393 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15274397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15274393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7637198 + 7637199.

It is an arithmetic number, because the mean of its divisors is an integer number (7637199).

Almost surely, 2^15274397 is an apocalyptic number.

It is an amenable number.

15274397 is a deficient number, since it is larger than the sum of its proper divisors (1).

15274397 is an equidigital number, since it uses as much as digits as its factorization.

15274397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 15274397 is about 3908.2473053787. The cubic root of 15274397 is about 248.1159544909.

The spelling of 15274397 in words is "fifteen million, two hundred seventy-four thousand, three hundred ninety-seven".