13042969 has 4 divisors (see below), whose sum is σ = 13067620. Its totient is φ = 13018320.

The previous prime is 13042963. The next prime is 13042999. The reversal of 13042969 is 96924031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96924031 = 151 ⋅641881.

It can be written as a sum of positive squares in 2 ways, for example, as 6692569 + 6350400 = 2587^2 + 2520^2 .

It is a cyclic number.

It is not a de Polignac number, because 13042969 - 2⁵ = 13042937 is a prime.

It is a super-2 number, since 2×13042969² = 340238080669922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13042963) 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, 11514 + ... + 12595.

It is an arithmetic number, because the mean of its divisors is an integer number (3266905).

Almost surely, 2^13042969 is an apocalyptic number.

It is an amenable number.

13042969 is a deficient number, since it is larger than the sum of its proper divisors (24651).

13042969 is an equidigital number, since it uses as much as digits as its factorization.

13042969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24650.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 13042969 is about 3611.5050879100. The cubic root of 13042969 is about 235.3922466886.

The spelling of 13042969 in words is "thirteen million, forty-two thousand, nine hundred sixty-nine".