1081427859 has 12 divisors (see below), whose sum is σ = 1568005296. Its totient is φ = 718209072.

The previous prime is 1081427827. The next prime is 1081427861. The reversal of 1081427859 is 9587241801.

It is not a de Polignac number, because 1081427859 - 2⁵ = 1081427827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1081427899) 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, 226072 + ... + 230805.

It is an arithmetic number, because the mean of its divisors is an integer number (130667108).

Almost surely, 2^1081427859 is an apocalyptic number.

1081427859 is a deficient number, since it is larger than the sum of its proper divisors (486577437).

1081427859 is a wasteful number, since it uses less digits than its factorization.

1081427859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457146 (or 457143 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 1081427859 is about 32885.0704575800. The cubic root of 1081427859 is about 1026.4375178813.

The spelling of 1081427859 in words is "one billion, eighty-one million, four hundred twenty-seven thousand, eight hundred fifty-nine".