6155881 has 4 divisors (see below), whose sum is σ = 6423552. Its totient is φ = 5888212.

The previous prime is 6155873. The next prime is 6155899. The reversal of 6155881 is 1885516.

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 6155881 - 2³ = 6155873 is a prime.

It is a super-2 number, since 2×6155881² = 75789741772322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6125881) 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, 133801 + ... + 133846.

It is an arithmetic number, because the mean of its divisors is an integer number (1605888).

Almost surely, 2^6155881 is an apocalyptic number.

It is an amenable number.

6155881 is a deficient number, since it is larger than the sum of its proper divisors (267671).

6155881 is a wasteful number, since it uses less digits than its factorization.

6155881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267670.

The product of its digits is 9600, while the sum is 34.

The square root of 6155881 is about 2481.1047942399. The cubic root of 6155881 is about 183.2722613843.

The spelling of 6155881 in words is "six million, one hundred fifty-five thousand, eight hundred eighty-one".