142125985 has 16 divisors (see below), whose sum is σ = 182577600. Its totient is φ = 105886656.

The previous prime is 142125983. The next prime is 142126009. The reversal of 142125985 is 589521241.

It is a cyclic number.

It is not a de Polignac number, because 142125985 - 2¹ = 142125983 is a prime.

It is a super-2 number, since 2×142125985² = 40399591224440450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142125983) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7074 + ... + 18283.

It is an arithmetic number, because the mean of its divisors is an integer number (11411100).

Almost surely, 2^142125985 is an apocalyptic number.

It is an amenable number.

142125985 is a deficient number, since it is larger than the sum of its proper divisors (40451615).

142125985 is a wasteful number, since it uses less digits than its factorization.

142125985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25440.

The product of its digits is 28800, while the sum is 37.

The square root of 142125985 is about 11921.6603289978. The cubic root of 142125985 is about 521.8645893438.

The spelling of 142125985 in words is "one hundred forty-two million, one hundred twenty-five thousand, nine hundred eighty-five".