1263450122 has 16 divisors (see below), whose sum is σ = 2157354432. Its totient is φ = 549325920.

The previous prime is 1263450113. The next prime is 1263450151. The reversal of 1263450122 is 2210543621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1263450091 and 1263450100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1247963 + ... + 1248974.

It is an arithmetic number, because the mean of its divisors is an integer number (134834652).

Almost surely, 2^1263450122 is an apocalyptic number.

1263450122 is a deficient number, since it is larger than the sum of its proper divisors (893904310).

1263450122 is a wasteful number, since it uses less digits than its factorization.

1263450122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496973.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1263450122 is about 35545.0435644690. The cubic root of 1263450122 is about 1081.0672240885.

Adding to 1263450122 its reverse (2210543621), we get a palindrome (3473993743).

The spelling of 1263450122 in words is "one billion, two hundred sixty-three million, four hundred fifty thousand, one hundred twenty-two".