142665825 has 24 divisors (see below), whose sum is σ = 236333088. Its totient is φ = 75940480.

The previous prime is 142665799. The next prime is 142665827. The reversal of 142665825 is 528566241.

It is not a de Polignac number, because 142665825 - 2⁷ = 142665697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142665827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44734 + ... + 47816.

It is an arithmetic number, because the mean of its divisors is an integer number (9847212).

Almost surely, 2^142665825 is an apocalyptic number.

142665825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142665825 is a deficient number, since it is larger than the sum of its proper divisors (93667263).

142665825 is a wasteful number, since it uses less digits than its factorization.

142665825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713 (or 3708 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 142665825 is about 11944.2800117881. The cubic root of 142665825 is about 522.5244908127.

The spelling of 142665825 in words is "one hundred forty-two million, six hundred sixty-five thousand, eight hundred twenty-five".