1142571858 has 16 divisors (see below), whose sum is σ = 2312676576. Its totient is φ = 376268480.

The previous prime is 1142571847. The next prime is 1142571863. The reversal of 1142571858 is 8581752411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146663 + ... + 1147658.

It is an arithmetic number, because the mean of its divisors is an integer number (144542286).

Almost surely, 2^1142571858 is an apocalyptic number.

1142571858 is an abundant number, since it is smaller than the sum of its proper divisors (1170104718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142571858 is a wasteful number, since it uses less digits than its factorization.

1142571858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294409.

The product of its digits is 89600, while the sum is 42.

The square root of 1142571858 is about 33801.9505058510. The cubic root of 1142571858 is about 1045.4289145341.

The spelling of 1142571858 in words is "one billion, one hundred forty-two million, five hundred seventy-one thousand, eight hundred fifty-eight".