1253563122 has 64 divisors (see below), whose sum is σ = 2896717824. Its totient is φ = 354257280.

The previous prime is 1253563117. The next prime is 1253563159. The reversal of 1253563122 is 2213653521.

It is a self number, because there is not a number n which added to its sum of digits gives 1253563122.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 2195097 + ... + 2195667.

It is an arithmetic number, because the mean of its divisors is an integer number (45261216).

Almost surely, 2^1253563122 is an apocalyptic number.

1253563122 is an abundant number, since it is smaller than the sum of its proper divisors (1643154702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253563122 is a wasteful number, since it uses less digits than its factorization.

1253563122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its digits is 10800, while the sum is 30.

The square root of 1253563122 is about 35405.6933557302. The cubic root of 1253563122 is about 1078.2399091772.

It can be divided in two parts, 12535 and 63122, that added together give a palindrome (75657).

The spelling of 1253563122 in words is "one billion, two hundred fifty-three million, five hundred sixty-three thousand, one hundred twenty-two".