13269969 has 6 divisors (see below), whose sum is σ = 19167746. Its totient is φ = 8846640.

The previous prime is 13269967. The next prime is 13269973. The reversal of 13269969 is 96996231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8910225 + 4359744 = 2985^2 + 2088^2 .

It is not a de Polignac number, because 13269969 - 2¹ = 13269967 is a prime.

It is a super-2 number, since 2×13269969² = 352184154521922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13269967) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 737212 + ... + 737229.

Almost surely, 2^13269969 is an apocalyptic number.

It is an amenable number.

13269969 is a deficient number, since it is larger than the sum of its proper divisors (5897777).

13269969 is a wasteful number, since it uses less digits than its factorization.

13269969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474447 (or 1474444 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 13269969 is about 3642.7968650475. The cubic root of 13269969 is about 236.7499900573.

The spelling of 13269969 in words is "thirteen million, two hundred sixty-nine thousand, nine hundred sixty-nine".