1275250265 has 16 divisors (see below), whose sum is σ = 1650136320. Its totient is φ = 942929280.

The previous prime is 1275250261. The next prime is 1275250283. The reversal of 1275250265 is 5620525721.

It is not a de Polignac number, because 1275250265 - 2² = 1275250261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1275250261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159809 + ... + 167598.

It is an arithmetic number, because the mean of its divisors is an integer number (103133520).

Almost surely, 2^1275250265 is an apocalyptic number.

It is an amenable number.

1275250265 is a deficient number, since it is larger than the sum of its proper divisors (374886055).

1275250265 is a wasteful number, since it uses less digits than its factorization.

1275250265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327472.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 1275250265 is about 35710.6463817165. The cubic root of 1275250265 is about 1084.4223857519.

Adding to 1275250265 its reverse (5620525721), we get a palindrome (6895775986).

The spelling of 1275250265 in words is "one billion, two hundred seventy-five million, two hundred fifty thousand, two hundred sixty-five".