1522638223 has 2 divisors, whose sum is σ = 1522638224. Its totient is φ = 1522638222.

The previous prime is 1522638217. The next prime is 1522638259. The reversal of 1522638223 is 3228362251.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1522638223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1522638323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761319111 + 761319112.

It is an arithmetic number, because the mean of its divisors is an integer number (761319112).

Almost surely, 2^1522638223 is an apocalyptic number.

1522638223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1522638223 is an equidigital number, since it uses as much as digits as its factorization.

1522638223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 1522638223 is about 39020.9972066322. The cubic root of 1522638223 is about 1150.4442450012. Note that the first 3 decimals are identical.

The spelling of 1522638223 in words is "one billion, five hundred twenty-two million, six hundred thirty-eight thousand, two hundred twenty-three".