1247004425 has 12 divisors (see below), whose sum is σ = 1546747356. Its totient is φ = 997305600.

The previous prime is 1247004413. The next prime is 1247004427. The reversal of 1247004425 is 5244007421.

It can be written as a sum of positive squares in 6 ways, for example, as 67081 + 1246937344 = 259^2 + 35312^2 .

It is not a de Polignac number, because 1247004425 - 2⁶ = 1247004361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1247004427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122117 + ... + 131933.

It is an arithmetic number, because the mean of its divisors is an integer number (128895613).

Almost surely, 2^1247004425 is an apocalyptic number.

It is an amenable number.

1247004425 is a deficient number, since it is larger than the sum of its proper divisors (299742931).

1247004425 is an equidigital number, since it uses as much as digits as its factorization.

1247004425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14908 (or 14903 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 1247004425 is about 35312.9498201439. The cubic root of 1247004425 is about 1076.3561539530.

The spelling of 1247004425 in words is "one billion, two hundred forty-seven million, four thousand, four hundred twenty-five".