2185423297 has 2 divisors, whose sum is σ = 2185423298. Its totient is φ = 2185423296.

The previous prime is 2185423291. The next prime is 2185423333. The reversal of 2185423297 is 7923245812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1618935696 + 566487601 = 40236^2 + 23801^2 .

It is a cyclic number.

It is not a de Polignac number, because 2185423297 - 2¹⁹ = 2184899009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2185423291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092711648 + 1092711649.

It is an arithmetic number, because the mean of its divisors is an integer number (1092711649).

Almost surely, 2^2185423297 is an apocalyptic number.

It is an amenable number.

2185423297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185423297 is an equidigital number, since it uses as much as digits as its factorization.

2185423297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 2185423297 is about 46748.5111741540. The cubic root of 2185423297 is about 1297.7126042344.

The spelling of 2185423297 in words is "two billion, one hundred eighty-five million, four hundred twenty-three thousand, two hundred ninety-seven".