142155566 has 24 divisors (see below), whose sum is σ = 248554656. Its totient is φ = 60799200.

The previous prime is 142155557. The next prime is 142155583. The reversal of 142155566 is 665551241.

It is a congruent number.

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, 59291 + ... + 61641.

It is an arithmetic number, because the mean of its divisors is an integer number (10356444).

Almost surely, 2^142155566 is an apocalyptic number.

142155566 is a deficient number, since it is larger than the sum of its proper divisors (106399090).

142155566 is a wasteful number, since it uses less digits than its factorization.

142155566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984 (or 2977 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 142155566 is about 11922.9009054005. The cubic root of 142155566 is about 521.9007924480.

The spelling of 142155566 in words is "one hundred forty-two million, one hundred fifty-five thousand, five hundred sixty-six".