1273150825 has 24 divisors (see below), whose sum is σ = 1699009560. Its totient is φ = 942873600.

The previous prime is 1273150777. The next prime is 1273150831. The reversal of 1273150825 is 5280513721.

It can be written as a sum of positive squares in 12 ways, for example, as 755315289 + 517835536 = 27483^2 + 22756^2 .

It is not a de Polignac number, because 1273150825 - 2²⁹ = 736279913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371 + ... + 50479.

It is an arithmetic number, because the mean of its divisors is an integer number (70792065).

Almost surely, 2^1273150825 is an apocalyptic number.

It is an amenable number.

1273150825 is a deficient number, since it is larger than the sum of its proper divisors (425858735).

1273150825 is a wasteful number, since it uses less digits than its factorization.

1273150825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49197 (or 49192 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 1273150825 is about 35681.2391180575. The cubic root of 1273150825 is about 1083.8269653069.

The spelling of 1273150825 in words is "one billion, two hundred seventy-three million, one hundred fifty thousand, eight hundred twenty-five".