827130149 has 4 divisors (see below), whose sum is σ = 827231340. Its totient is φ = 827028960.

The previous prime is 827130113. The next prime is 827130151. The reversal of 827130149 is 941031728.

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

It can be written as a sum of positive squares in 2 ways, for example, as 357021025 + 470109124 = 18895^2 + 21682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-827130149 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 (827130179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37142 + ... + 55079.

It is an arithmetic number, because the mean of its divisors is an integer number (206807835).

Almost surely, 2^827130149 is an apocalyptic number.

It is an amenable number.

827130149 is a deficient number, since it is larger than the sum of its proper divisors (101191).

827130149 is an equidigital number, since it uses as much as digits as its factorization.

827130149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101190.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 827130149 is about 28759.8704621561. The cubic root of 827130149 is about 938.6952431266.

The spelling of 827130149 in words is "eight hundred twenty-seven million, one hundred thirty thousand, one hundred forty-nine".