1369444625 has 8 divisors (see below), whose sum is σ = 1709067048. Its totient is φ = 1095555600.

The previous prime is 1369444621. The next prime is 1369444651. The reversal of 1369444625 is 5264449631.

It can be written as a sum of positive squares in 4 ways, for example, as 23435281 + 1346009344 = 4841^2 + 36688^2 .

It is not a de Polignac number, because 1369444625 - 2² = 1369444621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369444621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5477654 + ... + 5477903.

It is an arithmetic number, because the mean of its divisors is an integer number (213633381).

Almost surely, 2^1369444625 is an apocalyptic number.

It is an amenable number.

1369444625 is a deficient number, since it is larger than the sum of its proper divisors (339622423).

1369444625 is an equidigital number, since it uses as much as digits as its factorization.

1369444625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10955572 (or 10955562 counting only the distinct ones).

The product of its digits is 622080, while the sum is 44.

The square root of 1369444625 is about 37006.0079581681. The cubic root of 1369444625 is about 1110.4904428491.

The spelling of 1369444625 in words is "one billion, three hundred sixty-nine million, four hundred forty-four thousand, six hundred twenty-five".