13531029 has 4 divisors (see below), whose sum is σ = 18041376. Its totient is φ = 9020684.

The previous prime is 13531019. The next prime is 13531043. The reversal of 13531029 is 92013531.

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: 92013531 = 3 ⋅30671177.

It is a cyclic number.

It is not a de Polignac number, because 13531029 - 2²³ = 5142421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531019) 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, 2255169 + ... + 2255174.

It is an arithmetic number, because the mean of its divisors is an integer number (4510344).

Almost surely, 2^13531029 is an apocalyptic number.

It is an amenable number.

13531029 is a deficient number, since it is larger than the sum of its proper divisors (4510347).

13531029 is an equidigital number, since it uses as much as digits as its factorization.

13531029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510346.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 13531029 is about 3678.4547027250. The cubic root of 13531029 is about 238.2924458633.

The spelling of 13531029 in words is "thirteen million, five hundred thirty-one thousand, twenty-nine".