13742981 has 16 divisors (see below), whose sum is σ = 16224000. Its totient is φ = 11635344.

The previous prime is 13742957. The next prime is 13743001. The reversal of 13742981 is 18924731.

13742981 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 13742981 - 2²² = 9548677 is a prime.

It is a super-2 number, since 2×13742981² = 377739053532722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13742921) 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, 35135 + ... + 35523.

It is an arithmetic number, because the mean of its divisors is an integer number (1014000).

Almost surely, 2^13742981 is an apocalyptic number.

It is an amenable number.

13742981 is a deficient number, since it is larger than the sum of its proper divisors (2481019).

13742981 is an equidigital number, since it uses as much as digits as its factorization.

13742981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 499 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 13742981 is about 3707.1526809669. The cubic root of 13742981 is about 239.5302210954.

The spelling of 13742981 in words is "thirteen million, seven hundred forty-two thousand, nine hundred eighty-one".