13481269 has 2 divisors, whose sum is σ = 13481270. Its totient is φ = 13481268.

The previous prime is 13481261. The next prime is 13481287. The reversal of 13481269 is 96218431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8910225 + 4571044 = 2985^2 + 2138^2 .

It is a cyclic number.

It is not a de Polignac number, because 13481269 - 2³ = 13481261 is a prime.

It is a super-2 number, since 2×13481269² = 363489227700722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13481261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6740634 + 6740635.

It is an arithmetic number, because the mean of its divisors is an integer number (6740635).

Almost surely, 2^13481269 is an apocalyptic number.

It is an amenable number.

13481269 is a deficient number, since it is larger than the sum of its proper divisors (1).

13481269 is an equidigital number, since it uses as much as digits as its factorization.

13481269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 13481269 is about 3671.6847631571. The cubic root of 13481269 is about 237.9999823459. Note that the first 4 decimals are identical.

The spelling of 13481269 in words is "thirteen million, four hundred eighty-one thousand, two hundred sixty-nine".