6161381 has 8 divisors (see below), whose sum is σ = 6298560. Its totient is φ = 6025888.

The previous prime is 6161347. The next prime is 6161383. The reversal of 6161381 is 1831616.

6161381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6161381 is a prime.

It is a super-2 number, since 2×6161381² = 75925231654322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6161381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9200 + ... + 9846.

It is an arithmetic number, because the mean of its divisors is an integer number (787320).

Almost surely, 2^6161381 is an apocalyptic number.

It is an amenable number.

6161381 is a deficient number, since it is larger than the sum of its proper divisors (137179).

6161381 is a wasteful number, since it uses less digits than its factorization.

6161381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843.

The product of its digits is 864, while the sum is 26.

The square root of 6161381 is about 2482.2129239854. The cubic root of 6161381 is about 183.3268269500.

Adding to 6161381 its reverse (1831616), we get a palindrome (7992997).

The spelling of 6161381 in words is "six million, one hundred sixty-one thousand, three hundred eighty-one".