13240715 has 8 divisors (see below), whose sum is σ = 16038000. Its totient is φ = 10493152.

The previous prime is 13240697. The next prime is 13240729. The reversal of 13240715 is 51704231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13240715 - 2⁶ = 13240651 is a prime.

It is a super-2 number, since 2×13240715² = 350633067422450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11840 + ... + 12909.

It is an arithmetic number, because the mean of its divisors is an integer number (2004750).

Almost surely, 2^13240715 is an apocalyptic number.

13240715 is a deficient number, since it is larger than the sum of its proper divisors (2797285).

13240715 is a wasteful number, since it uses less digits than its factorization.

13240715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24861.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 13240715 is about 3638.7793282913. The cubic root of 13240715 is about 236.5758881715.

Adding to 13240715 its reverse (51704231), we get a palindrome (64944946).

The spelling of 13240715 in words is "thirteen million, two hundred forty thousand, seven hundred fifteen".