120000142 has 4 divisors (see below), whose sum is σ = 180000216. Its totient is φ = 60000070.

The previous prime is 120000137. The next prime is 120000169. The reversal of 120000142 is 241000021.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30000034 + ... + 30000037.

It is an arithmetic number, because the mean of its divisors is an integer number (45000054).

Almost surely, 2^120000142 is an apocalyptic number.

120000142 is a deficient number, since it is larger than the sum of its proper divisors (60000074).

120000142 is an equidigital number, since it uses as much as digits as its factorization.

120000142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60000073.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 120000142 is about 10954.4576314850. The cubic root of 120000142 is about 493.2426094227.

Adding to 120000142 its reverse (241000021), we get a palindrome (361000163).

The spelling of 120000142 in words is "one hundred twenty million, one hundred forty-two", and thus it is an aban number.