13849531 has 2 divisors, whose sum is σ = 13849532. Its totient is φ = 13849530.

The previous prime is 13849523. The next prime is 13849541. The reversal of 13849531 is 13594831.

It is a weak prime.

It is an emirp because it is prime and its reverse (13594831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13849531 - 2³ = 13849523 is a prime.

It is a super-2 number, since 2×13849531² = 383619017839922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13849541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6924765 + 6924766.

It is an arithmetic number, because the mean of its divisors is an integer number (6924766).

Almost surely, 2^13849531 is an apocalyptic number.

13849531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13849531 is an equidigital number, since it uses as much as digits as its factorization.

13849531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 13849531 is about 3721.4958014218. The cubic root of 13849531 is about 240.1476579786.

The spelling of 13849531 in words is "thirteen million, eight hundred forty-nine thousand, five hundred thirty-one".