1365431625 has 96 divisors (see below), whose sum is σ = 2539364256. Its totient is φ = 705600000.

The previous prime is 1365431539. The next prime is 1365431629. The reversal of 1365431625 is 5261345631.

It can be written as a sum of positive squares in 16 ways, for example, as 547700409 + 817731216 = 23403^2 + 28596^2 .

It is not a de Polignac number, because 1365431625 - 2⁹ = 1365431113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1365431625.

It is not an unprimeable number, because it can be changed into a prime (1365431629) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6931027 + ... + 6931223.

It is an arithmetic number, because the mean of its divisors is an integer number (26451711).

Almost surely, 2^1365431625 is an apocalyptic number.

1365431625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1365431625 is a deficient number, since it is larger than the sum of its proper divisors (1173932631).

1365431625 is a wasteful number, since it uses less digits than its factorization.

1365431625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 367 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1365431625 is about 36951.7472523289. The cubic root of 1365431625 is about 1109.4046600547.

The spelling of 1365431625 in words is "one billion, three hundred sixty-five million, four hundred thirty-one thousand, six hundred twenty-five".