1247925299 has 2 divisors, whose sum is σ = 1247925300. Its totient is φ = 1247925298.

The previous prime is 1247925281. The next prime is 1247925313. The reversal of 1247925299 is 9925297421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1247925299 - 2⁸ = 1247925043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1247925209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623962649 + 623962650.

It is an arithmetic number, because the mean of its divisors is an integer number (623962650).

Almost surely, 2^1247925299 is an apocalyptic number.

1247925299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1247925299 is an equidigital number, since it uses as much as digits as its factorization.

1247925299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 50.

The square root of 1247925299 is about 35325.9861716556. The cubic root of 1247925299 is about 1076.6210406125.

The spelling of 1247925299 in words is "one billion, two hundred forty-seven million, nine hundred twenty-five thousand, two hundred ninety-nine".