2290123687 has 2 divisors, whose sum is σ = 2290123688. Its totient is φ = 2290123686.

The previous prime is 2290123651. The next prime is 2290123747. The reversal of 2290123687 is 7863210922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2290123687 - 2¹⁹ = 2289599399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2290120687) 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 as a sum of consecutive naturals, namely, 1145061843 + 1145061844.

It is an arithmetic number, because the mean of its divisors is an integer number (1145061844).

Almost surely, 2^2290123687 is an apocalyptic number.

2290123687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2290123687 is an equidigital number, since it uses as much as digits as its factorization.

2290123687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2290123687 is about 47855.2367771804. The cubic root of 2290123687 is about 1318.1140205677.

The spelling of 2290123687 in words is "two billion, two hundred ninety million, one hundred twenty-three thousand, six hundred eighty-seven".