1276725 has 24 divisors (see below), whose sum is σ = 2187360. Its totient is φ = 656320.

The previous prime is 1276721. The next prime is 1276733. The reversal of 1276725 is 5276721.

It is not a de Polignac number, because 1276725 - 2² = 1276721 is a prime.

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

1276725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1276692 and 1276701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276721) 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 23 ways as a sum of consecutive naturals, for example, 1882 + ... + 2468.

It is an arithmetic number, because the mean of its divisors is an integer number (91140).

2^1276725 is an apocalyptic number.

1276725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1276725 is a deficient number, since it is larger than the sum of its proper divisors (910635).

1276725 is a wasteful number, since it uses less digits than its factorization.

1276725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 624 counting only the distinct ones).

The product of its digits is 5880, while the sum is 30.

The square root of 1276725 is about 1129.9225637184. The cubic root of 1276725 is about 108.4840243491.

The spelling of 1276725 in words is "one million, two hundred seventy-six thousand, seven hundred twenty-five".