13849551 has 6 divisors (see below), whose sum is σ = 20004920. Its totient is φ = 9233028.

The previous prime is 13849541. The next prime is 13849553. The reversal of 13849551 is 15594831.

It is not a de Polignac number, because 13849551 - 2¹⁸ = 13587407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13849553) 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, 769411 + ... + 769428.

Almost surely, 2^13849551 is an apocalyptic number.

13849551 is a deficient number, since it is larger than the sum of its proper divisors (6155369).

13849551 is a wasteful number, since it uses less digits than its factorization.

13849551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538845 (or 1538842 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 13849551 is about 3721.4984885124. The cubic root of 13849551 is about 240.1477735770.

It can be divided in two parts, 13849 and 551, that added together give a square (14400 = 120²).

The spelling of 13849551 in words is "thirteen million, eight hundred forty-nine thousand, five hundred fifty-one".