1142939722185 has 24 divisors (see below), whose sum is σ = 1981126667520. Its totient is φ = 609558267552.

The previous prime is 1142939722159. The next prime is 1142939722193. The reversal of 1142939722185 is 5812279392411.

1142939722185 is a `hidden beast` number, since 1 + 1 + 4 + 29 + 397 + 221 + 8 + 5 = 666.

It is not a de Polignac number, because 1142939722185 - 2²¹ = 1142937625033 is a prime.

It is a super-2 number, since 2×1142939722185² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3412072 + ... + 3732038.

It is an arithmetic number, because the mean of its divisors is an integer number (82546944480).

Almost surely, 2^{1142939722185} is an apocalyptic number.

1142939722185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142939722185 is a deficient number, since it is larger than the sum of its proper divisors (838186945335).

1142939722185 is a wasteful number, since it uses less digits than its factorization.

1142939722185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399357 (or 399354 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 1142939722185 in words is "one trillion, one hundred forty-two billion, nine hundred thirty-nine million, seven hundred twenty-two thousand, one hundred eighty-five".