1642327523 has 2 divisors, whose sum is σ = 1642327524. Its totient is φ = 1642327522.

The previous prime is 1642327499. The next prime is 1642327541. The reversal of 1642327523 is 3257232461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1642327523 - 2²⁸ = 1373892067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1642327543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821163761 + 821163762.

It is an arithmetic number, because the mean of its divisors is an integer number (821163762).

Almost surely, 2^1642327523 is an apocalyptic number.

1642327523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1642327523 is an equidigital number, since it uses as much as digits as its factorization.

1642327523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 35.

The square root of 1642327523 is about 40525.6403157310. The cubic root of 1642327523 is about 1179.8313277532.

Adding to 1642327523 its reverse (3257232461), we get a palindrome (4899559984).

The spelling of 1642327523 in words is "one billion, six hundred forty-two million, three hundred twenty-seven thousand, five hundred twenty-three".