142120875 has 32 divisors (see below), whose sum is σ = 254689344. Its totient is φ = 69964800.

The previous prime is 142120871. The next prime is 142120907. The reversal of 142120875 is 578021241.

It is not a de Polignac number, because 142120875 - 2² = 142120871 is a prime.

It is a super-2 number, since 2×142120875² = 40396686221531250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142120871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9702 + ... + 19451.

It is an arithmetic number, because the mean of its divisors is an integer number (7959042).

Almost surely, 2^142120875 is an apocalyptic number.

142120875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142120875 is a deficient number, since it is larger than the sum of its proper divisors (112568469).

142120875 is a wasteful number, since it uses less digits than its factorization.

142120875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29184 (or 29174 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 142120875 is about 11921.4460112857. The cubic root of 142120875 is about 521.8583348928.

The spelling of 142120875 in words is "one hundred forty-two million, one hundred twenty thousand, eight hundred seventy-five".