1369715825 has 12 divisors (see below), whose sum is σ = 1719949440. Its totient is φ = 1081900560.

The previous prime is 1369715821. The next prime is 1369715887. The reversal of 1369715825 is 5285179631.

It is not a de Polignac number, because 1369715825 - 2² = 1369715821 is a prime.

It is a super-2 number, since 2×1369715825² = 3752242882510861250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1369715825.

It is not an unprimeable number, because it can be changed into a prime (1369715821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344789 + ... + 348738.

It is an arithmetic number, because the mean of its divisors is an integer number (143329120).

Almost surely, 2^1369715825 is an apocalyptic number.

It is an amenable number.

1369715825 is a deficient number, since it is larger than the sum of its proper divisors (350233615).

1369715825 is an equidigital number, since it uses as much as digits as its factorization.

1369715825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693616 (or 693611 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The square root of 1369715825 is about 37009.6720466421. The cubic root of 1369715825 is about 1110.5637438852.

The spelling of 1369715825 in words is "one billion, three hundred sixty-nine million, seven hundred fifteen thousand, eight hundred twenty-five".