1375212625 has 16 divisors (see below), whose sum is σ = 1775451600. Its totient is φ = 1062230400.

The previous prime is 1375212623. The next prime is 1375212653. The reversal of 1375212625 is 5262125731.

It can be written as a sum of positive squares in 8 ways, for example, as 118722816 + 1256489809 = 10896^2 + 35447^2 .

It is not a de Polignac number, because 1375212625 - 2¹ = 1375212623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1375212623) 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 15 ways as a sum of consecutive naturals, for example, 186060 + ... + 193309.

It is an arithmetic number, because the mean of its divisors is an integer number (110965725).

Almost surely, 2^1375212625 is an apocalyptic number.

It is an amenable number.

1375212625 is a deficient number, since it is larger than the sum of its proper divisors (400238975).

1375212625 is an equidigital number, since it uses as much as digits as its factorization.

1375212625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379413 (or 379403 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 1375212625 is about 37083.8593595650. The cubic root of 1375212625 is about 1112.0473603628.

The spelling of 1375212625 in words is "one billion, three hundred seventy-five million, two hundred twelve thousand, six hundred twenty-five".