1263522427 has 8 divisors (see below), whose sum is σ = 1268084160. Its totient is φ = 1258969920.

The previous prime is 1263522413. The next prime is 1263522443. The reversal of 1263522427 is 7242253621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1263522427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1263522392 and 1263522401.

It is not an unprimeable number, because it can be changed into a prime (1263522487) 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 in 7 ways as a sum of consecutive naturals, for example, 372913 + ... + 376285.

It is an arithmetic number, because the mean of its divisors is an integer number (158510520).

Almost surely, 2^1263522427 is an apocalyptic number.

1263522427 is a deficient number, since it is larger than the sum of its proper divisors (4561733).

1263522427 is an equidigital number, since it uses as much as digits as its factorization.

1263522427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4613.

The product of its digits is 40320, while the sum is 34.

The square root of 1263522427 is about 35546.0606396827. The cubic root of 1263522427 is about 1081.0878462123.

The spelling of 1263522427 in words is "one billion, two hundred sixty-three million, five hundred twenty-two thousand, four hundred twenty-seven".