15274993 has 16 divisors (see below), whose sum is σ = 17202240. Its totient is φ = 13515840.

The previous prime is 15274991. The next prime is 15275021. The reversal of 15274993 is 39947251.

It is not a de Polignac number, because 15274993 - 2¹ = 15274991 is a prime.

It is a super-2 number, since 2×15274993² = 466650822300098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15274991) 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, 116538 + ... + 116668.

It is an arithmetic number, because the mean of its divisors is an integer number (1075140).

Almost surely, 2^15274993 is an apocalyptic number.

It is an amenable number.

15274993 is a deficient number, since it is larger than the sum of its proper divisors (1927247).

15274993 is an equidigital number, since it uses as much as digits as its factorization.

15274993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 167 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 15274993 is about 3908.3235536480. The cubic root of 15274993 is about 248.1191815727.

The spelling of 15274993 in words is "fifteen million, two hundred seventy-four thousand, nine hundred ninety-three".