1142122986 has 24 divisors (see below), whose sum is σ = 2475853380. Its totient is φ = 380514816.

The previous prime is 1142122973. The next prime is 1142122997. The reversal of 1142122986 is 6892212411.

1142122986 is a `hidden beast` number, since 1 + 1 + 421 + 229 + 8 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1140075225 + 2047761 = 33765^2 + 1431^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1142122986.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23020 + ... + 53048.

Almost surely, 2^1142122986 is an apocalyptic number.

1142122986 is an abundant number, since it is smaller than the sum of its proper divisors (1333730394).

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

1142122986 is a wasteful number, since it uses less digits than its factorization.

1142122986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32150 (or 32147 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1142122986 is about 33795.3101184173. The cubic root of 1142122986 is about 1045.2919938291.

The spelling of 1142122986 in words is "one billion, one hundred forty-two million, one hundred twenty-two thousand, nine hundred eighty-six".