13654381 has 4 divisors (see below), whose sum is σ = 14704732. Its totient is φ = 12604032.

The previous prime is 13654373. The next prime is 13654409. The reversal of 13654381 is 18345631.

13654381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18345631 = 811 ⋅22621.

It can be written as a sum of positive squares in 2 ways, for example, as 4137156 + 9517225 = 2034^2 + 3085^2 .

It is a cyclic number.

It is not a de Polignac number, because 13654381 - 2³ = 13654373 is a prime.

It is a super-2 number, since 2×13654381² = 372884240986322, 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 (13654351) 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, 525156 + ... + 525181.

It is an arithmetic number, because the mean of its divisors is an integer number (3676183).

Almost surely, 2^13654381 is an apocalyptic number.

It is an amenable number.

13654381 is a deficient number, since it is larger than the sum of its proper divisors (1050351).

13654381 is a wasteful number, since it uses less digits than its factorization.

13654381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050350.

The product of its digits is 8640, while the sum is 31.

The square root of 13654381 is about 3695.1834866485. The cubic root of 13654381 is about 239.0143662985.

The spelling of 13654381 in words is "thirteen million, six hundred fifty-four thousand, three hundred eighty-one".