1642560223 has 2 divisors, whose sum is σ = 1642560224. Its totient is φ = 1642560222.

The previous prime is 1642560197. The next prime is 1642560233. The reversal of 1642560223 is 3220652461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1642560223 - 2¹³ = 1642552031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1642560233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821280111 + 821280112.

It is an arithmetic number, because the mean of its divisors is an integer number (821280112).

Almost surely, 2^1642560223 is an apocalyptic number.

1642560223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1642560223 is an equidigital number, since it uses as much as digits as its factorization.

1642560223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1642560223 is about 40528.5112359188. The cubic root of 1642560223 is about 1179.8870482232.

The spelling of 1642560223 in words is "one billion, six hundred forty-two million, five hundred sixty thousand, two hundred twenty-three".