142193312 has 12 divisors (see below), whose sum is σ = 279943146. Its totient is φ = 71096640.

The previous prime is 142193309. The next prime is 142193339. The reversal of 142193312 is 213391241.

It can be written as a sum of positive squares in only one way, i.e., 123565456 + 18627856 = 11116^2 + 4316^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221739 + ... + 2221802.

Almost surely, 2^142193312 is an apocalyptic number.

It is an amenable number.

142193312 is a deficient number, since it is larger than the sum of its proper divisors (137749834).

142193312 is an equidigital number, since it uses as much as digits as its factorization.

142193312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443551 (or 4443543 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 142193312 is about 11924.4837204803. The cubic root of 142193312 is about 521.9469811048.

The spelling of 142193312 in words is "one hundred forty-two million, one hundred ninety-three thousand, three hundred twelve".