220312532149 has 2 divisors, whose sum is σ = 220312532150. Its totient is φ = 220312532148.

The previous prime is 220312532129. The next prime is 220312532197. The reversal of 220312532149 is 941235213022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169830531025 + 50482001124 = 412105^2 + 224682^2 .

It is a cyclic number.

It is not a de Polignac number, because 220312532149 - 2¹¹ = 220312530101 is a prime.

It is a super-4 number, since 4×220312532149⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220312532129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110156266074 + 110156266075.

It is an arithmetic number, because the mean of its divisors is an integer number (110156266075).

Almost surely, 2^220312532149 is an apocalyptic number.

It is an amenable number.

220312532149 is a deficient number, since it is larger than the sum of its proper divisors (1).

220312532149 is an equidigital number, since it uses as much as digits as its factorization.

220312532149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 220312532149 in words is "two hundred twenty billion, three hundred twelve million, five hundred thirty-two thousand, one hundred forty-nine".