1425264312161 has 4 divisors (see below), whose sum is σ = 1433226682800. Its totient is φ = 1417301941524.

The previous prime is 1425264312137. The next prime is 1425264312181. The reversal of 1425264312161 is 1612134625241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1425264312161 - 2³⁴ = 1408084442977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425264312181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3981185051 + ... + 3981185408.

It is an arithmetic number, because the mean of its divisors is an integer number (358306670700).

Almost surely, 2^{1425264312161} is an apocalyptic number.

It is an amenable number.

1425264312161 is a deficient number, since it is larger than the sum of its proper divisors (7962370639).

1425264312161 is an equidigital number, since it uses as much as digits as its factorization.

1425264312161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962370638.

The product of its digits is 69120, while the sum is 38.

The spelling of 1425264312161 in words is "one trillion, four hundred twenty-five billion, two hundred sixty-four million, three hundred twelve thousand, one hundred sixty-one".