90936159 has 4 divisors (see below), whose sum is σ = 121248216. Its totient is φ = 60624104.

The previous prime is 90936143. The next prime is 90936217. The reversal of 90936159 is 95163909.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90936159 - 2⁴ = 90936143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90936159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90936119) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15156024 + ... + 15156029.

It is an arithmetic number, because the mean of its divisors is an integer number (30312054).

Almost surely, 2^90936159 is an apocalyptic number.

90936159 is a deficient number, since it is larger than the sum of its proper divisors (30312057).

90936159 is a wasteful number, since it uses less digits than its factorization.

90936159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30312056.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 90936159 is about 9536.0452494732. The cubic root of 90936159 is about 449.6889356423.

The spelling of 90936159 in words is "ninety million, nine hundred thirty-six thousand, one hundred fifty-nine".