13574909 has 2 divisors, whose sum is σ = 13574910. Its totient is φ = 13574908.

The previous prime is 13574887. The next prime is 13574917. The reversal of 13574909 is 90947531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10582009 + 2992900 = 3253^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 13574909 - 2¹² = 13570813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13574989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6787454 + 6787455.

It is an arithmetic number, because the mean of its divisors is an integer number (6787455).

Almost surely, 2^13574909 is an apocalyptic number.

It is an amenable number.

13574909 is a deficient number, since it is larger than the sum of its proper divisors (1).

13574909 is an equidigital number, since it uses as much as digits as its factorization.

13574909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 13574909 is about 3684.4143360920. The cubic root of 13574909 is about 238.5497554368.

The spelling of 13574909 in words is "thirteen million, five hundred seventy-four thousand, nine hundred nine".