1272425 has 24 divisors (see below), whose sum is σ = 1970112. Its totient is φ = 792000.

The previous prime is 1272421. The next prime is 1272443. The reversal of 1272425 is 5242721.

1272425 = T₂₂ + T₂₃ + ... + T₁₉₆.

It is a happy number.

It is not a de Polignac number, because 1272425 - 2² = 1272421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1272425.

It is not an unprimeable number, because it can be changed into a prime (1272421) 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 23 ways as a sum of consecutive naturals, for example, 1595 + ... + 2255.

It is an arithmetic number, because the mean of its divisors is an integer number (82088).

2^1272425 is an apocalyptic number.

It is an amenable number.

1272425 is a deficient number, since it is larger than the sum of its proper divisors (697687).

1272425 is a wasteful number, since it uses less digits than its factorization.

1272425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 684 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 1272425 is about 1128.0181736125. The cubic root of 1272425 is about 108.3620962417.

It can be divided in two parts, 127 and 2425, that added together give a palindrome (2552).

The spelling of 1272425 in words is "one million, two hundred seventy-two thousand, four hundred twenty-five".