1270925 has 12 divisors (see below), whose sum is σ = 1631220. Its totient is φ = 981120.

The previous prime is 1270909. The next prime is 1270933. The reversal of 1270925 is 5290721.

It can be written as a sum of positive squares in 6 ways, for example, as 228484 + 1042441 = 478^2 + 1021^2 .

It is not a de Polignac number, because 1270925 - 2⁴ = 1270909 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1270894 and 1270903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (135935).

2^1270925 is an apocalyptic number.

It is an amenable number.

1270925 is a deficient number, since it is larger than the sum of its proper divisors (360295).

1270925 is a wasteful number, since it uses less digits than its factorization.

1270925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1270925 is about 1127.3530946425. The cubic root of 1270925 is about 108.3194985620.

The spelling of 1270925 in words is "one million, two hundred seventy thousand, nine hundred twenty-five".