6157881 has 12 divisors (see below), whose sum is σ = 9363120. Its totient is φ = 3889080.

The previous prime is 6157861. The next prime is 6157883. The reversal of 6157881 is 1887516.

6157881 is a `hidden beast` number, since 6 + 1 + 578 + 81 = 666.

It is not a de Polignac number, because 6157881 - 2⁹ = 6157369 is a prime.

It is a super-2 number, since 2×6157881² = 75838996820322, which contains 22 as substring.

It is an Ulam number.

6157881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6157883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17835 + ... + 18176.

It is an arithmetic number, because the mean of its divisors is an integer number (780260).

Almost surely, 2^6157881 is an apocalyptic number.

It is an amenable number.

6157881 is a deficient number, since it is larger than the sum of its proper divisors (3205239).

6157881 is a wasteful number, since it uses less digits than its factorization.

6157881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36036 (or 36033 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 6157881 is about 2481.5078077653. The cubic root of 6157881 is about 183.2921071673.

The spelling of 6157881 in words is "six million, one hundred fifty-seven thousand, eight hundred eighty-one".