1387900025125 has 16 divisors (see below), whose sum is σ = 1774345560624. Its totient is φ = 1083239040000.

The previous prime is 1387900025111. The next prime is 1387900025137. The reversal of 1387900025125 is 5215200097831.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1211500865124 + 176399160001 = 1100682^2 + 419999^2 .

It is not a de Polignac number, because 1387900025125 - 2¹⁹ = 1387899500837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135399756 + ... + 135410005.

It is an arithmetic number, because the mean of its divisors is an integer number (110896597539).

Almost surely, 2^{1387900025125} is an apocalyptic number.

It is an amenable number.

1387900025125 is a deficient number, since it is larger than the sum of its proper divisors (386445535499).

1387900025125 is an equidigital number, since it uses as much as digits as its factorization.

1387900025125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270809817 (or 270809807 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 1387900025125 in words is "one trillion, three hundred eighty-seven billion, nine hundred million, twenty-five thousand, one hundred twenty-five".