1348251406261 has 2 divisors, whose sum is σ = 1348251406262. Its totient is φ = 1348251406260.

The previous prime is 1348251406231. The next prime is 1348251406273. The reversal of 1348251406261 is 1626041528431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 681440344036 + 666811062225 = 825494^2 + 816585^2 .

It is an emirp because it is prime and its reverse (1626041528431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1348251406261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1348251406231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674125703130 + 674125703131.

It is an arithmetic number, because the mean of its divisors is an integer number (674125703131).

Almost surely, 2^{1348251406261} is an apocalyptic number.

It is an amenable number.

1348251406261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1348251406261 is an equidigital number, since it uses as much as digits as its factorization.

1348251406261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 1348251406261 in words is "one trillion, three hundred forty-eight billion, two hundred fifty-one million, four hundred six thousand, two hundred sixty-one".