1250047949 has 2 divisors, whose sum is σ = 1250047950. Its totient is φ = 1250047948.

The previous prime is 1250047921. The next prime is 1250047957. The reversal of 1250047949 is 9497400521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1245595849 + 4452100 = 35293^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250047949 - 2²⁸ = 981612493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250047549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625023974 + 625023975.

It is an arithmetic number, because the mean of its divisors is an integer number (625023975).

Almost surely, 2^1250047949 is an apocalyptic number.

It is an amenable number.

1250047949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250047949 is an equidigital number, since it uses as much as digits as its factorization.

1250047949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1250047949 is about 35356.0171540857. The cubic root of 1250047949 is about 1077.2311185717.

The spelling of 1250047949 in words is "one billion, two hundred fifty million, forty-seven thousand, nine hundred forty-nine".