142001072 has 20 divisors (see below), whose sum is σ = 275320920. Its totient is φ = 70950528.

The previous prime is 142001063. The next prime is 142001087. The reversal of 142001072 is 270100241.

It is a self number, because there is not a number n which added to its sum of digits gives 142001072.

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 in 3 ways as a sum of consecutive naturals, for example, 32828 + ... + 36900.

It is an arithmetic number, because the mean of its divisors is an integer number (13766046).

Almost surely, 2^142001072 is an apocalyptic number.

It is an amenable number.

142001072 is a deficient number, since it is larger than the sum of its proper divisors (133319848).

142001072 is a wasteful number, since it uses less digits than its factorization.

142001072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260 (or 6254 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 142001072 is about 11916.4202678489. The cubic root of 142001072 is about 521.7116574729.

The spelling of 142001072 in words is "one hundred forty-two million, one thousand, seventy-two".