13981735 has 16 divisors (see below), whose sum is σ = 17948736. Its totient is φ = 10418688.

The previous prime is 13981729. The next prime is 13981789. The reversal of 13981735 is 53718931.

It is a happy number.

13981735 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13981735 - 2³ = 13981727 is a prime.

It is a super-2 number, since 2×13981735² = 390977827220450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13981694 and 13981703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7957 + ... + 9553.

It is an arithmetic number, because the mean of its divisors is an integer number (1121796).

Almost surely, 2^13981735 is an apocalyptic number.

13981735 is a deficient number, since it is larger than the sum of its proper divisors (3967001).

13981735 is a wasteful number, since it uses less digits than its factorization.

13981735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722.

The product of its digits is 22680, while the sum is 37.

The square root of 13981735 is about 3739.2158268814. The cubic root of 13981735 is about 240.9093683072.

The spelling of 13981735 in words is "thirteen million, nine hundred eighty-one thousand, seven hundred thirty-five".