1273438825 has 12 divisors (see below), whose sum is σ = 1593554380. Its totient is φ = 1009402560.

The previous prime is 1273438799. The next prime is 1273438847. The reversal of 1273438825 is 5288343721.

It can be written as a sum of positive squares in 6 ways, for example, as 4084441 + 1269354384 = 2021^2 + 35628^2 .

It is not a de Polignac number, because 1273438825 - 2¹⁷ = 1273307753 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 230934 + ... + 236383.

Almost surely, 2^1273438825 is an apocalyptic number.

It is an amenable number.

1273438825 is a deficient number, since it is larger than the sum of its proper divisors (320115555).

1273438825 is a wasteful number, since it uses less digits than its factorization.

1273438825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467436 (or 467431 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 1273438825 is about 35685.2746241359. The cubic root of 1273438825 is about 1083.9086834679.

The spelling of 1273438825 in words is "one billion, two hundred seventy-three million, four hundred thirty-eight thousand, eight hundred twenty-five".