90159235 has 8 divisors (see below), whose sum is σ = 108249840. Its totient is φ = 72088224.

The previous prime is 90159227. The next prime is 90159239. The reversal of 90159235 is 53295109.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90159235 - 2³ = 90159227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90159235.

It is not an unprimeable number, because it can be changed into a prime (90159239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8629 + ... + 15961.

It is an arithmetic number, because the mean of its divisors is an integer number (13531230).

Almost surely, 2^90159235 is an apocalyptic number.

90159235 is a deficient number, since it is larger than the sum of its proper divisors (18090605).

90159235 is a wasteful number, since it uses less digits than its factorization.

90159235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9797.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 90159235 is about 9495.2216930412. The cubic root of 90159235 is about 448.4046139327.

The spelling of 90159235 in words is "ninety million, one hundred fifty-nine thousand, two hundred thirty-five".