90132648841 has 3 divisors (see below), whose sum is σ = 90132949063. Its totient is φ = 90132348620.

The previous prime is 90132648839. The next prime is 90132648877. The reversal of 90132648841 is 14884623109.

The square root of 90132648841 is 300221.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 68423573241 + 21709075600 = 261579^2 + 147340^2 .

It is not a de Polignac number, because 90132648841 - 2¹ = 90132648839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90132648791 and 90132648800.

It is not an unprimeable number, because it can be changed into a prime (90132648941) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 150111 + ... + 450331.

Almost surely, 2^90132648841 is an apocalyptic number.

90132648841 is the 300221-st square number.

90132648841 is the 150111-st centered octagonal number.

It is an amenable number.

90132648841 is a deficient number, since it is larger than the sum of its proper divisors (300222).

90132648841 is an frugal number, since it uses more digits than its factorization.

90132648841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600442 (or 300221 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 90132648841 in words is "ninety billion, one hundred thirty-two million, six hundred forty-eight thousand, eight hundred forty-one".