142238612 has 6 divisors (see below), whose sum is σ = 248917578. Its totient is φ = 71119304.

The previous prime is 142238597. The next prime is 142238623. The reversal of 142238612 is 216832241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 118287376 + 23951236 = 10876^2 + 4894^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17779823 + ... + 17779830.

It is an arithmetic number, because the mean of its divisors is an integer number (41486263).

Almost surely, 2^142238612 is an apocalyptic number.

It is an amenable number.

142238612 is a deficient number, since it is larger than the sum of its proper divisors (106678966).

142238612 is a wasteful number, since it uses less digits than its factorization.

142238612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35559657 (or 35559655 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 142238612 is about 11926.3830225262. The cubic root of 142238612 is about 522.0024025765.

The spelling of 142238612 in words is "one hundred forty-two million, two hundred thirty-eight thousand, six hundred twelve".