1249504241 has 2 divisors, whose sum is σ = 1249504242. Its totient is φ = 1249504240.

The previous prime is 1249504219. The next prime is 1249504247. The reversal of 1249504241 is 1424059421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1087680400 + 161823841 = 32980^2 + 12721^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249504241 - 2¹⁰ = 1249503217 is a prime.

It is a super-2 number, since 2×1249504241² = 3122521696553972162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1249504198 and 1249504207.

It is not a weakly prime, because it can be changed into another prime (1249504247) 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 as a sum of consecutive naturals, namely, 624752120 + 624752121.

It is an arithmetic number, because the mean of its divisors is an integer number (624752121).

Almost surely, 2^1249504241 is an apocalyptic number.

It is an amenable number.

1249504241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249504241 is an equidigital number, since it uses as much as digits as its factorization.

1249504241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1249504241 is about 35348.3272730125. The cubic root of 1249504241 is about 1077.0749154664.

The spelling of 1249504241 in words is "one billion, two hundred forty-nine million, five hundred four thousand, two hundred forty-one".