142747628 has 48 divisors (see below), whose sum is σ = 269404800. Its totient is φ = 66044160.

The previous prime is 142747621. The next prime is 142747639. The reversal of 142747628 is 826747241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (142747621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338858 + ... + 339278.

It is an arithmetic number, because the mean of its divisors is an integer number (5612600).

Almost surely, 2^142747628 is an apocalyptic number.

It is an amenable number.

142747628 is a deficient number, since it is larger than the sum of its proper divisors (126657172).

142747628 is a wasteful number, since it uses less digits than its factorization.

142747628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 568 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 142747628 is about 11947.7038798256. The cubic root of 142747628 is about 522.6243416444.

The spelling of 142747628 in words is "one hundred forty-two million, seven hundred forty-seven thousand, six hundred twenty-eight".