142739312 has 10 divisors (see below), whose sum is σ = 276557448. Its totient is φ = 71369648.

The previous prime is 142739291. The next prime is 142739321. The reversal of 142739312 is 213937241.

It is a super-2 number, since 2×142739312² = 40749022380466688, 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 as a sum of consecutive naturals, namely, 4460588 + ... + 4460619.

Almost surely, 2^142739312 is an apocalyptic number.

It is an amenable number.

142739312 is a deficient number, since it is larger than the sum of its proper divisors (133818136).

142739312 is an equidigital number, since it uses as much as digits as its factorization.

142739312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8921215 (or 8921209 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 142739312 is about 11947.3558580968. The cubic root of 142739312 is about 522.6141926645.

The spelling of 142739312 in words is "one hundred forty-two million, seven hundred thirty-nine thousand, three hundred twelve".