13961015 has 8 divisors (see below), whose sum is σ = 16955568. Its totient is φ = 11033920.

The previous prime is 13960987. The next prime is 13961071. The reversal of 13961015 is 51016931.

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

It is not a de Polignac number, because 13961015 - 2¹⁴ = 13944631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16406 + ... + 17235.

It is an arithmetic number, because the mean of its divisors is an integer number (2119446).

Almost surely, 2^13961015 is an apocalyptic number.

13961015 is a deficient number, since it is larger than the sum of its proper divisors (2994553).

13961015 is an equidigital number, since it uses as much as digits as its factorization.

13961015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33729.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 13961015 is about 3736.4441652459. Note that the first 3 decimals coincide. The cubic root of 13961015 is about 240.7903055942.

Adding to 13961015 its reverse (51016931), we get a palindrome (64977946).

The spelling of 13961015 in words is "thirteen million, nine hundred sixty-one thousand, fifteen".