13954381 has 4 divisors (see below), whose sum is σ = 15947872. Its totient is φ = 11960892.

The previous prime is 13954361. The next prime is 13954387. The reversal of 13954381 is 18345931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13954381 - 2⁹ = 13953869 is a prime.

It is a super-2 number, since 2×13954381² = 389449498186322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13954387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996735 + ... + 996748.

It is an arithmetic number, because the mean of its divisors is an integer number (3986968).

Almost surely, 2^13954381 is an apocalyptic number.

It is an amenable number.

13954381 is a deficient number, since it is larger than the sum of its proper divisors (1993491).

13954381 is an equidigital number, since it uses as much as digits as its factorization.

13954381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993490.

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

The square root of 13954381 is about 3735.5563173375. The cubic root of 13954381 is about 240.7521599443.

It can be divided in two parts, 1395 and 4381, that added together give a square (5776 = 76²).

The spelling of 13954381 in words is "thirteen million, nine hundred fifty-four thousand, three hundred eighty-one".