142933186 has 24 divisors (see below), whose sum is σ = 238131180. Its totient is φ = 64289280.

The previous prime is 142933159. The next prime is 142933243. The reversal of 142933186 is 681339241.

It can be written as a sum of positive squares in 2 ways, for example, as 138791961 + 4141225 = 11781^2 + 2035^2 .

It is a super-2 number, since 2×142933186² = 40859791320221192, which contains 22 as substring.

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, 20430 + ... + 26518.

Almost surely, 2^142933186 is an apocalyptic number.

142933186 is a deficient number, since it is larger than the sum of its proper divisors (95197994).

142933186 is a wasteful number, since it uses less digits than its factorization.

142933186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210 (or 6199 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 142933186 is about 11955.4667830244. The cubic root of 142933186 is about 522.8506971573.

The spelling of 142933186 in words is "one hundred forty-two million, nine hundred thirty-three thousand, one hundred eighty-six".