1275229065 has 32 divisors (see below), whose sum is σ = 2233101312. Its totient is φ = 616280000.

The previous prime is 1275229049. The next prime is 1275229073. The reversal of 1275229065 is 5609225721.

It is not a de Polignac number, because 1275229065 - 2⁴ = 1275229049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38890 + ... + 63740.

It is an arithmetic number, because the mean of its divisors is an integer number (69784416).

Almost surely, 2^1275229065 is an apocalyptic number.

1275229065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275229065 is a deficient number, since it is larger than the sum of its proper divisors (957872247).

1275229065 is a wasteful number, since it uses less digits than its factorization.

1275229065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25181.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1275229065 is about 35710.3495502354. The cubic root of 1275229065 is about 1084.4163765048.

The spelling of 1275229065 in words is "one billion, two hundred seventy-five million, two hundred twenty-nine thousand, sixty-five".