13968529 has 4 divisors (see below), whose sum is σ = 14099184. Its totient is φ = 13837876.

The previous prime is 13968523. The next prime is 13968533. The reversal of 13968529 is 92586931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92586931 = 661 ⋅140071.

It is a cyclic number.

It is not a de Polignac number, because 13968529 - 2¹⁷ = 13837457 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (13968523) 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, 65167 + ... + 65380.

It is an arithmetic number, because the mean of its divisors is an integer number (3524796).

Almost surely, 2^13968529 is an apocalyptic number.

It is an amenable number.

13968529 is a deficient number, since it is larger than the sum of its proper divisors (130655).

13968529 is a wasteful number, since it uses less digits than its factorization.

13968529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130654.

The product of its digits is 116640, while the sum is 43.

The square root of 13968529 is about 3737.4495314318. The cubic root of 13968529 is about 240.8334966721.

The spelling of 13968529 in words is "thirteen million, nine hundred sixty-eight thousand, five hundred twenty-nine".