1248623801 has 2 divisors, whose sum is σ = 1248623802. Its totient is φ = 1248623800.

The previous prime is 1248623743. The next prime is 1248623819. The reversal of 1248623801 is 1083268421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1213825600 + 34798201 = 34840^2 + 5899^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248623801 - 2⁶ = 1248623737 is a prime.

It is a super-2 number, since 2×1248623801² = 3118122792847375202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1248622801) 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, 624311900 + 624311901.

It is an arithmetic number, because the mean of its divisors is an integer number (624311901).

Almost surely, 2^1248623801 is an apocalyptic number.

It is an amenable number.

1248623801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248623801 is an equidigital number, since it uses as much as digits as its factorization.

1248623801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 1248623801 is about 35335.8713066481. The cubic root of 1248623801 is about 1076.8218757331.

The spelling of 1248623801 in words is "one billion, two hundred forty-eight million, six hundred twenty-three thousand, eight hundred one".