133450012961 has 2 divisors, whose sum is σ = 133450012962. Its totient is φ = 133450012960.

The previous prime is 133450012921. The next prime is 133450013057. The reversal of 133450012961 is 169210054331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95095140625 + 38354872336 = 308375^2 + 195844^2 .

It is a cyclic number.

It is not a de Polignac number, because 133450012961 - 2²⁶ = 133382904097 is a prime.

It is not a weakly prime, because it can be changed into another prime (133450012921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66725006480 + 66725006481.

It is an arithmetic number, because the mean of its divisors is an integer number (66725006481).

Almost surely, 2^133450012961 is an apocalyptic number.

It is an amenable number.

133450012961 is a deficient number, since it is larger than the sum of its proper divisors (1).

133450012961 is an equidigital number, since it uses as much as digits as its factorization.

133450012961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 133450012961 in words is "one hundred thirty-three billion, four hundred fifty million, twelve thousand, nine hundred sixty-one".