1296625 has 32 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 880000.

The previous prime is 1296623. The next prime is 1296629. The reversal of 1296625 is 5266921.

1296625 = 83² + 84² + ... + 164².

1296625 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 1296625 - 2¹ = 1296623 is a prime.

It is a Duffinian number.

Its product of digits (6480) is a multiple of the sum of its prime divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1296623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31605 + ... + 31645.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2^1296625 is an apocalyptic number.

It is an amenable number.

1296625 is a deficient number, since it is larger than the sum of its proper divisors (590351).

1296625 is a wasteful number, since it uses less digits than its factorization.

1296625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 80 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 1296625 is about 1138.6944278427. The cubic root of 1296625 is about 109.0447589936.

It can be divided in two parts, 1296 and 625, that multiplied together give a 4-th power (810000 = 30⁴).

The spelling of 1296625 in words is "one million, two hundred ninety-six thousand, six hundred twenty-five".