15340345 has 4 divisors (see below), whose sum is σ = 18408420. Its totient is φ = 12272272.

The previous prime is 15340343. The next prime is 15340349. The reversal of 15340345 is 54304351.

15340345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54304351 = 521 ⋅104231.

It can be written as a sum of positive squares in 2 ways, for example, as 7706176 + 7634169 = 2776^2 + 2763^2 .

It is a cyclic number.

It is not a de Polignac number, because 15340345 - 2¹ = 15340343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15340343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1534030 + ... + 1534039.

It is an arithmetic number, because the mean of its divisors is an integer number (4602105).

Almost surely, 2^15340345 is an apocalyptic number.

It is an amenable number.

15340345 is a deficient number, since it is larger than the sum of its proper divisors (3068075).

15340345 is an equidigital number, since it uses as much as digits as its factorization.

15340345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068074.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 15340345 is about 3916.6752482175. The cubic root of 15340345 is about 248.4725263037.

Adding to 15340345 its reverse (54304351), we get a palindrome (69644696).

The spelling of 15340345 in words is "fifteen million, three hundred forty thousand, three hundred forty-five".