1022565243 has 16 divisors (see below), whose sum is σ = 1558642176. Its totient is φ = 584155200.

The previous prime is 1022565227. The next prime is 1022565253. The reversal of 1022565243 is 3425652201.

It is not a de Polignac number, because 1022565243 - 2⁴ = 1022565227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022565243.

It is not an unprimeable number, because it can be changed into a prime (1022565223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133855 + ... + 141287.

It is an arithmetic number, because the mean of its divisors is an integer number (97415136).

Almost surely, 2^1022565243 is an apocalyptic number.

1022565243 is a deficient number, since it is larger than the sum of its proper divisors (536076933).

1022565243 is an equidigital number, since it uses as much as digits as its factorization.

1022565243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13994.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1022565243 is about 31977.5740637091. The cubic root of 1022565243 is about 1007.4658697418.

The spelling of 1022565243 in words is "one billion, twenty-two million, five hundred sixty-five thousand, two hundred forty-three".