90134440201 has 8 divisors (see below), whose sum is σ = 98068559624. Its totient is φ = 82343278080.

The previous prime is 90134440177. The next prime is 90134440223. The reversal of 90134440201 is 10204443109.

It can be written as a sum of positive squares in 4 ways, for example, as 62425801 + 90072014400 = 7901^2 + 300120^2 .

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 90134440201 - 2²⁹ = 89597569289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90134440201.

It is not an unprimeable number, because it can be changed into a prime (90134450201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35738010 + ... + 35740531.

It is an arithmetic number, because the mean of its divisors is an integer number (12258569953).

Almost surely, 2^90134440201 is an apocalyptic number.

It is an amenable number.

90134440201 is a deficient number, since it is larger than the sum of its proper divisors (7934119423).

90134440201 is a wasteful number, since it uses less digits than its factorization.

90134440201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71478651.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 90134440201 in words is "ninety billion, one hundred thirty-four million, four hundred forty thousand, two hundred one".