90142875 has 80 divisors (see below), whose sum is σ = 174414240. Its totient is φ = 46267200.

The previous prime is 90142831. The next prime is 90142889. The reversal of 90142875 is 57824109.

It is not a de Polignac number, because 90142875 - 2⁹ = 90142363 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 293472 + ... + 293778.

It is an arithmetic number, because the mean of its divisors is an integer number (2180178).

Almost surely, 2^90142875 is an apocalyptic number.

90142875 is a deficient number, since it is larger than the sum of its proper divisors (84271365).

90142875 is a wasteful number, since it uses less digits than its factorization.

90142875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 90142875 is about 9494.3601680155. The cubic root of 90142875 is about 448.3774902803.

The spelling of 90142875 in words is "ninety million, one hundred forty-two thousand, eight hundred seventy-five".