90435133 has 4 divisors (see below), whose sum is σ = 91313248. Its totient is φ = 89557020.

The previous prime is 90435131. The next prime is 90435151. The reversal of 90435133 is 33153409.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90435133 - 2¹ = 90435131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90435131) 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, 438903 + ... + 439108.

It is an arithmetic number, because the mean of its divisors is an integer number (22828312).

Almost surely, 2^90435133 is an apocalyptic number.

It is an amenable number.

90435133 is a deficient number, since it is larger than the sum of its proper divisors (878115).

90435133 is a wasteful number, since it uses less digits than its factorization.

90435133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878114.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 90435133 is about 9509.7388502524. The cubic root of 90435133 is about 448.8615386805.

The spelling of 90435133 in words is "ninety million, four hundred thirty-five thousand, one hundred thirty-three".