1262353249 has 2 divisors, whose sum is σ = 1262353250. Its totient is φ = 1262353248.

The previous prime is 1262353219. The next prime is 1262353273. The reversal of 1262353249 is 9423532621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 806957649 + 455395600 = 28407^2 + 21340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262353249 - 2⁷ = 1262353121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1262353219) 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, 631176624 + 631176625.

It is an arithmetic number, because the mean of its divisors is an integer number (631176625).

Almost surely, 2^1262353249 is an apocalyptic number.

It is an amenable number.

1262353249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262353249 is an equidigital number, since it uses as much as digits as its factorization.

1262353249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The square root of 1262353249 is about 35529.6108760003. The cubic root of 1262353249 is about 1080.7542881718.

The spelling of 1262353249 in words is "one billion, two hundred sixty-two million, three hundred fifty-three thousand, two hundred forty-nine".