2190544331 has 2 divisors, whose sum is σ = 2190544332. Its totient is φ = 2190544330.

The previous prime is 2190544309. The next prime is 2190544373. The reversal of 2190544331 is 1334450912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2190544331 - 2⁶ = 2190544267 is a prime.

It is a super-2 number, since 2×2190544331² = 9596968932152475122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2190543331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095272165 + 1095272166.

It is an arithmetic number, because the mean of its divisors is an integer number (1095272166).

Almost surely, 2^2190544331 is an apocalyptic number.

2190544331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190544331 is an equidigital number, since it uses as much as digits as its factorization.

2190544331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2190544331 is about 46803.2512866361. The cubic root of 2190544331 is about 1298.7254433019.

The spelling of 2190544331 in words is "two billion, one hundred ninety million, five hundred forty-four thousand, three hundred thirty-one".