15313493 has 16 divisors (see below), whose sum is σ = 17127936. Its totient is φ = 13601280.

The previous prime is 15313483. The next prime is 15313513. The reversal of 15313493 is 39431351.

It is a cyclic number.

It is not a de Polignac number, because 15313493 - 2¹⁰ = 15312469 is a prime.

It is a super-2 number, since 2×15313493² = 469006135722098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15313483) 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, 43205 + ... + 43557.

It is an arithmetic number, because the mean of its divisors is an integer number (1070496).

Almost surely, 2^15313493 is an apocalyptic number.

15313493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15313493 is a deficient number, since it is larger than the sum of its proper divisors (1814443).

15313493 is a wasteful number, since it uses less digits than its factorization.

15313493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its digits is 4860, while the sum is 29.

The square root of 15313493 is about 3913.2458394535. The cubic root of 15313493 is about 248.3274647903.

The spelling of 15313493 in words is "fifteen million, three hundred thirteen thousand, four hundred ninety-three".