1340628125 has 48 divisors (see below), whose sum is σ = 1795510080. Its totient is φ = 997920000.

The previous prime is 1340628103. The next prime is 1340628161. The reversal of 1340628125 is 5218260431.

It is not a de Polignac number, because 1340628125 - 2¹⁸ = 1340365981 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1340628091 and 1340628100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3977957 + ... + 3978293.

It is an arithmetic number, because the mean of its divisors is an integer number (37406460).

Almost surely, 2^1340628125 is an apocalyptic number.

It is an amenable number.

1340628125 is a deficient number, since it is larger than the sum of its proper divisors (454881955).

1340628125 is an frugal number, since it uses more digits than its factorization.

1340628125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1340628125 is about 36614.5889639635. The cubic root of 1340628125 is about 1102.6460060677.

Adding to 1340628125 its reverse (5218260431), we get a palindrome (6558888556).

The spelling of 1340628125 in words is "one billion, three hundred forty million, six hundred twenty-eight thousand, one hundred twenty-five".