1259125275921 has 16 divisors (see below), whose sum is σ = 1679858913600. Its totient is φ = 838904376128.

The previous prime is 1259125275893. The next prime is 1259125275959. The reversal of 1259125275921 is 1295725219521.

It is a cyclic number.

It is not a de Polignac number, because 1259125275921 - 2¹⁴ = 1259125259537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1259105275921) 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, 56555890 + ... + 56578148.

It is an arithmetic number, because the mean of its divisors is an integer number (104991182100).

Almost surely, 2^{1259125275921} is an apocalyptic number.

It is an amenable number.

1259125275921 is a deficient number, since it is larger than the sum of its proper divisors (420733637679).

1259125275921 is a wasteful number, since it uses less digits than its factorization.

1259125275921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32928.

The product of its digits is 1134000, while the sum is 51.

The spelling of 1259125275921 in words is "one trillion, two hundred fifty-nine billion, one hundred twenty-five million, two hundred seventy-five thousand, nine hundred twenty-one".