133761971461 has 2 divisors, whose sum is σ = 133761971462. Its totient is φ = 133761971460.

The previous prime is 133761971443. The next prime is 133761971501. The reversal of 133761971461 is 164179167331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95314212900 + 38447758561 = 308730^2 + 196081^2 .

It is a cyclic number.

It is not a de Polignac number, because 133761971461 - 2¹⁵ = 133761938693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133761975461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66880985730 + 66880985731.

It is an arithmetic number, because the mean of its divisors is an integer number (66880985731).

Almost surely, 2^133761971461 is an apocalyptic number.

It is an amenable number.

133761971461 is a deficient number, since it is larger than the sum of its proper divisors (1).

133761971461 is an equidigital number, since it uses as much as digits as its factorization.

133761971461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The spelling of 133761971461 in words is "one hundred thirty-three billion, seven hundred sixty-one million, nine hundred seventy-one thousand, four hundred sixty-one".