1297176612481 has 4 divisors (see below), whose sum is σ = 1297212784452. Its totient is φ = 1297140440512.

The previous prime is 1297176612373. The next prime is 1297176612533. The reversal of 1297176612481 is 1842166717921.

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 900980640000 + 396195972481 = 949200^2 + 629441^2 .

It is a cyclic number.

It is not a de Polignac number, because 1297176612481 - 2¹³ = 1297176604289 is a prime.

It is a super-2 number, since 2×1297176612481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1297176612181) 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, 18032140 + ... + 18103933.

It is an arithmetic number, because the mean of its divisors is an integer number (324303196113).

Almost surely, 2^{1297176612481} is an apocalyptic number.

It is an amenable number.

1297176612481 is a deficient number, since it is larger than the sum of its proper divisors (36171971).

1297176612481 is an equidigital number, since it uses as much as digits as its factorization.

1297176612481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36171970.

The product of its digits is 2032128, while the sum is 55.

The spelling of 1297176612481 in words is "one trillion, two hundred ninety-seven billion, one hundred seventy-six million, six hundred twelve thousand, four hundred eighty-one".