1225276314085 has 4 divisors (see below), whose sum is σ = 1470331576908. Its totient is φ = 980221051264.

The previous prime is 1225276314079. The next prime is 1225276314137. The reversal of 1225276314085 is 5804136725221.

It is a Cunningham number, because it is equal to 1106922²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 441100535716 + 784175778369 = 664154^2 + 885537^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225276314085 - 2²⁷ = 1225142096357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122527631404 + ... + 122527631413.

It is an arithmetic number, because the mean of its divisors is an integer number (367582894227).

Almost surely, 2^{1225276314085} is an apocalyptic number.

It is an amenable number.

1225276314085 is a deficient number, since it is larger than the sum of its proper divisors (245055262823).

1225276314085 is an equidigital number, since it uses as much as digits as its factorization.

1225276314085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245055262822.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 1225276314085 in words is "one trillion, two hundred twenty-five billion, two hundred seventy-six million, three hundred fourteen thousand, eighty-five".