134240968206461 has 2 divisors, whose sum is σ = 134240968206462. Its totient is φ = 134240968206460.

The previous prime is 134240968206431. The next prime is 134240968206493. The reversal of 134240968206461 is 164602869042431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128824089004900 + 5416879201561 = 11350070^2 + 2327419^2 .

It is a cyclic number.

It is not a de Polignac number, because 134240968206461 - 2²² = 134240964012157 is a prime.

It is a super-2 number, since 2×134240968206461² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 134240968206397 and 134240968206406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134240968206431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67120484103230 + 67120484103231.

It is an arithmetic number, because the mean of its divisors is an integer number (67120484103231).

Almost surely, 2^{134240968206461} is an apocalyptic number.

It is an amenable number.

134240968206461 is a deficient number, since it is larger than the sum of its proper divisors (1).

134240968206461 is an equidigital number, since it uses as much as digits as its factorization.

134240968206461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11943936, while the sum is 56.

The spelling of 134240968206461 in words is "one hundred thirty-four trillion, two hundred forty billion, nine hundred sixty-eight million, two hundred six thousand, four hundred sixty-one".