1249677433 has 2 divisors, whose sum is σ = 1249677434. Its totient is φ = 1249677432.

The previous prime is 1249677431. The next prime is 1249677439. The reversal of 1249677433 is 3347769421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1244890089 + 4787344 = 35283^2 + 2188^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249677433 - 2¹ = 1249677431 is a prime.

Together with 1249677431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1249677431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624838716 + 624838717.

It is an arithmetic number, because the mean of its divisors is an integer number (624838717).

Almost surely, 2^1249677433 is an apocalyptic number.

It is an amenable number.

1249677433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249677433 is an equidigital number, since it uses as much as digits as its factorization.

1249677433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 46.

The square root of 1249677433 is about 35350.7769787313. The cubic root of 1249677433 is about 1077.1246771064.

The spelling of 1249677433 in words is "one billion, two hundred forty-nine million, six hundred seventy-seven thousand, four hundred thirty-three".