15313345 has 16 divisors (see below), whose sum is σ = 19560528. Its totient is φ = 11468800.

The previous prime is 15313321. The next prime is 15313357. The reversal of 15313345 is 54331351.

15313345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5022081 + 10291264 = 2241^2 + 3208^2 .

It is not a de Polignac number, because 15313345 - 2⁵ = 15313313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21495 + ... + 22195.

It is an arithmetic number, because the mean of its divisors is an integer number (1222533).

Almost surely, 2^15313345 is an apocalyptic number.

It is an amenable number.

15313345 is a deficient number, since it is larger than the sum of its proper divisors (4247183).

15313345 is a wasteful number, since it uses less digits than its factorization.

15313345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980.

The product of its digits is 2700, while the sum is 25.

The square root of 15313345 is about 3913.2269292746. The cubic root of 15313345 is about 248.3266647860.

Adding to 15313345 its reverse (54331351), we get a palindrome (69644696).

The spelling of 15313345 in words is "fifteen million, three hundred thirteen thousand, three hundred forty-five".