6142155881 has 8 divisors (see below), whose sum is σ = 6309318144. Its totient is φ = 5975054640.

The previous prime is 6142155869. The next prime is 6142155889. The reversal of 6142155881 is 1885512416.

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-6142155881 is a prime.

It is a super-2 number, since 2×6142155881² = 75452157733005772322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6142155889) 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, 251126 + ... + 274496.

It is an arithmetic number, because the mean of its divisors is an integer number (788664768).

Almost surely, 2^6142155881 is an apocalyptic number.

It is an amenable number.

6142155881 is a deficient number, since it is larger than the sum of its proper divisors (167162263).

6142155881 is a wasteful number, since it uses less digits than its factorization.

6142155881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30511.

The product of its digits is 76800, while the sum is 41.

The square root of 6142155881 is about 78371.9074732777. The cubic root of 6142155881 is about 1831.3595241510.

The spelling of 6142155881 in words is "six billion, one hundred forty-two million, one hundred fifty-five thousand, eight hundred eighty-one".