1275426225 has 72 divisors (see below), whose sum is σ = 2351546912. Its totient is φ = 660441600.

The previous prime is 1275426193. The next prime is 1275426227. The reversal of 1275426225 is 5226245721.

1275426225 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 426 + 225 = 666.

It is not a de Polignac number, because 1275426225 - 2⁵ = 1275426193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1275426225.

It is not an unprimeable number, because it can be changed into a prime (1275426227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2331402 + ... + 2331948.

Almost surely, 2^1275426225 is an apocalyptic number.

1275426225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275426225 is a deficient number, since it is larger than the sum of its proper divisors (1076120687).

1275426225 is a wasteful number, since it uses less digits than its factorization.

1275426225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 839 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 1275426225 is about 35713.1099877902. The cubic root of 1275426225 is about 1084.4722599328.

The spelling of 1275426225 in words is "one billion, two hundred seventy-five million, four hundred twenty-six thousand, two hundred twenty-five".