142939712 has 14 divisors (see below), whose sum is σ = 283646118. Its totient is φ = 71469824.

The previous prime is 142939703. The next prime is 142939721. The reversal of 142939712 is 217939241.

It is an interprime number because it is at equal distance from previous prime (142939703) and next prime (142939721).

It can be written as a sum of positive squares in only one way, i.e., 90174016 + 52765696 = 9496^2 + 7264^2 .

It is a super-2 number, since 2×142939712² = 40863522533285888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1116653 + ... + 1116780.

It is an arithmetic number, because the mean of its divisors is an integer number (20260437).

Almost surely, 2^142939712 is an apocalyptic number.

It is an amenable number.

142939712 is a deficient number, since it is larger than the sum of its proper divisors (140706406).

142939712 is an equidigital number, since it uses as much as digits as its factorization.

142939712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233445 (or 2233435 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 142939712 is about 11955.7397094450. The cubic root of 142939712 is about 522.8586544223.

The spelling of 142939712 in words is "one hundred forty-two million, nine hundred thirty-nine thousand, seven hundred twelve".