13992526 has 8 divisors (see below), whose sum is σ = 21009240. Its totient is φ = 6989448.

The previous prime is 13992523. The next prime is 13992527. The reversal of 13992526 is 62529931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13992523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261 + ... + 5296.

It is an arithmetic number, because the mean of its divisors is an integer number (2626155).

Almost surely, 2^13992526 is an apocalyptic number.

13992526 is a deficient number, since it is larger than the sum of its proper divisors (7016714).

13992526 is a wasteful number, since it uses less digits than its factorization.

13992526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6818.

The product of its digits is 29160, while the sum is 37.

The square root of 13992526 is about 3740.6584981792. The cubic root of 13992526 is about 240.9713297276.

It can be divided in two parts, 139 and 92526, that added together give a triangular number (92665 = T₄₃₀).

The spelling of 13992526 in words is "thirteen million, nine hundred ninety-two thousand, five hundred twenty-six".