6109381 has 4 divisors (see below), whose sum is σ = 6183072. Its totient is φ = 6035692.

The previous prime is 6109357. The next prime is 6109399. The reversal of 6109381 is 1839016.

It is a happy number.

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 6109381 - 2⁵ = 6109349 is a prime.

It is a super-2 number, since 2×6109381² = 74649072406322, 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 (6109321) 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, 36721 + ... + 36886.

It is an arithmetic number, because the mean of its divisors is an integer number (1545768).

Almost surely, 2^6109381 is an apocalyptic number.

It is an amenable number.

6109381 is a deficient number, since it is larger than the sum of its proper divisors (73691).

6109381 is an equidigital number, since it uses as much as digits as its factorization.

6109381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73690.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 6109381 is about 2471.7162053925. The cubic root of 6109381 is about 182.8096301349.

The spelling of 6109381 in words is "six million, one hundred nine thousand, three hundred eighty-one".