13671553 has 16 divisors (see below), whose sum is σ = 16689024. Its totient is φ = 10932480.

The previous prime is 13671533. The next prime is 13671563. The reversal of 13671553 is 35517631.

It is a cyclic number.

It is not a de Polignac number, because 13671553 - 2⁵ = 13671521 is a prime.

It is a super-2 number, since 2×13671553² = 373822722863618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13671533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15151 + ... + 16027.

It is an arithmetic number, because the mean of its divisors is an integer number (1043064).

Almost surely, 2^13671553 is an apocalyptic number.

It is an amenable number.

13671553 is a deficient number, since it is larger than the sum of its proper divisors (3017471).

13671553 is a wasteful number, since it uses less digits than its factorization.

13671553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032.

The product of its digits is 9450, while the sum is 31.

The square root of 13671553 is about 3697.5063218337. The cubic root of 13671553 is about 239.1145206087.

The spelling of 13671553 in words is "thirteen million, six hundred seventy-one thousand, five hundred fifty-three".