1001427263 has 2 divisors, whose sum is σ = 1001427264. Its totient is φ = 1001427262.

The previous prime is 1001427257. The next prime is 1001427277. The reversal of 1001427263 is 3627241001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001427263 is a prime.

It is a super-4 number, since 4×1001427263⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001427253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500713631 + 500713632.

It is an arithmetic number, because the mean of its divisors is an integer number (500713632).

Almost surely, 2^1001427263 is an apocalyptic number.

1001427263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001427263 is an equidigital number, since it uses as much as digits as its factorization.

1001427263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1001427263 is about 31645.3355646610. The cubic root of 1001427263 is about 1000.4755281704.

Adding to 1001427263 its reverse (3627241001), we get a palindrome (4628668264).

The spelling of 1001427263 in words is "one billion, one million, four hundred twenty-seven thousand, two hundred sixty-three".