1385124625 has 8 divisors (see below), whose sum is σ = 1728635688. Its totient is φ = 1108099600.

The previous prime is 1385124619. The next prime is 1385124649. The reversal of 1385124625 is 5264215831.

It can be written as a sum of positive squares in 4 ways, for example, as 77651344 + 1307473281 = 8812^2 + 36159^2 .

It is not a de Polignac number, because 1385124625 - 2⁷ = 1385124497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5540374 + ... + 5540623.

It is an arithmetic number, because the mean of its divisors is an integer number (216079461).

Almost surely, 2^1385124625 is an apocalyptic number.

It is an amenable number.

1385124625 is a deficient number, since it is larger than the sum of its proper divisors (343511063).

1385124625 is an equidigital number, since it uses as much as digits as its factorization.

1385124625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11081012 (or 11081002 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 1385124625 is about 37217.2624597780. The cubic root of 1385124625 is about 1114.7127025620.

The spelling of 1385124625 in words is "one billion, three hundred eighty-five million, one hundred twenty-four thousand, six hundred twenty-five".