1249700747 has 2 divisors, whose sum is σ = 1249700748. Its totient is φ = 1249700746.

The previous prime is 1249700743. The next prime is 1249700773. The reversal of 1249700747 is 7470079421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1249700747 - 2² = 1249700743 is a prime.

It is not a weakly prime, because it can be changed into another prime (1249700743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624850373 + 624850374.

It is an arithmetic number, because the mean of its divisors is an integer number (624850374).

Almost surely, 2^1249700747 is an apocalyptic number.

1249700747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249700747 is an equidigital number, since it uses as much as digits as its factorization.

1249700747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 1249700747 is about 35351.1067294929. The cubic root of 1249700747 is about 1077.1313753492.

The spelling of 1249700747 in words is "one billion, two hundred forty-nine million, seven hundred thousand, seven hundred forty-seven".