90859142 has 12 divisors (see below), whose sum is σ = 149805348. Its totient is φ = 41299500.

The previous prime is 90859133. The next prime is 90859163. The reversal of 90859142 is 24195809.

It is a junction number, because it is equal to n+sod(n) for n = 90859096 and 90859105.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 187484 + ... + 187967.

It is an arithmetic number, because the mean of its divisors is an integer number (12483779).

Almost surely, 2^90859142 is an apocalyptic number.

90859142 is a deficient number, since it is larger than the sum of its proper divisors (58946206).

90859142 is a wasteful number, since it uses less digits than its factorization.

90859142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375475 (or 375464 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 90859142 is about 9532.0061896749. The cubic root of 90859142 is about 449.5619473785.

The spelling of 90859142 in words is "ninety million, eight hundred fifty-nine thousand, one hundred forty-two".