1249062949 has 2 divisors, whose sum is σ = 1249062950. Its totient is φ = 1249062948.

The previous prime is 1249062911. The next prime is 1249062979. The reversal of 1249062949 is 9492609421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 959450625 + 289612324 = 30975^2 + 17018^2 .

It is an emirp because it is prime and its reverse (9492609421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1249062949 - 2¹³ = 1249054757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1249062899 and 1249062908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1249062979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624531474 + 624531475.

It is an arithmetic number, because the mean of its divisors is an integer number (624531475).

Almost surely, 2^1249062949 is an apocalyptic number.

It is an amenable number.

1249062949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249062949 is an equidigital number, since it uses as much as digits as its factorization.

1249062949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 1249062949 is about 35342.0846725260. The cubic root of 1249062949 is about 1076.9481023689.

The spelling of 1249062949 in words is "one billion, two hundred forty-nine million, sixty-two thousand, nine hundred forty-nine".