15274481 has 2 divisors, whose sum is σ = 15274482. Its totient is φ = 15274480.

The previous prime is 15274477. The next prime is 15274487. The reversal of 15274481 is 18447251.

It is a happy number.

15274481 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., 13359025 + 1915456 = 3655^2 + 1384^2 .

It is an emirp because it is prime and its reverse (18447251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15274481 - 2² = 15274477 is a prime.

It is a super-2 number, since 2×15274481² = 466619539638722, which contains 22 as substring.

It is equal to p₉₈₇₃₁₄ and since 15274481 and 987314 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (15274487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7637240 + 7637241.

It is an arithmetic number, because the mean of its divisors is an integer number (7637241).

Almost surely, 2^15274481 is an apocalyptic number.

It is an amenable number.

15274481 is a deficient number, since it is larger than the sum of its proper divisors (1).

15274481 is an equidigital number, since it uses as much as digits as its factorization.

15274481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 32.

The square root of 15274481 is about 3908.2580518691. The cubic root of 15274481 is about 248.1164093196.

The spelling of 15274481 in words is "fifteen million, two hundred seventy-four thousand, four hundred eighty-one".