13809461 has 2 divisors, whose sum is σ = 13809462. Its totient is φ = 13809460.

The previous prime is 13809451. The next prime is 13809479. The reversal of 13809461 is 16490831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9186961 + 4622500 = 3031^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 13809461 - 2²² = 9615157 is a prime.

It is a super-2 number, since 2×13809461² = 381402426221042, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13809421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6904730 + 6904731.

It is an arithmetic number, because the mean of its divisors is an integer number (6904731).

Almost surely, 2^13809461 is an apocalyptic number.

It is an amenable number.

13809461 is a deficient number, since it is larger than the sum of its proper divisors (1).

13809461 is an equidigital number, since it uses as much as digits as its factorization.

13809461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 13809461 is about 3716.1083138143. The cubic root of 13809461 is about 239.9158327548.

The spelling of 13809461 in words is "thirteen million, eight hundred nine thousand, four hundred sixty-one".