133761590609 has 2 divisors, whose sum is σ = 133761590610. Its totient is φ = 133761590608.

The previous prime is 133761590581. The next prime is 133761590657. The reversal of 133761590609 is 906095167331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80824784209 + 52936806400 = 284297^2 + 230080^2 .

It is a cyclic number.

It is not a de Polignac number, because 133761590609 - 2¹² = 133761586513 is a prime.

It is not a weakly prime, because it can be changed into another prime (133761590689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66880795304 + 66880795305.

It is an arithmetic number, because the mean of its divisors is an integer number (66880795305).

Almost surely, 2^133761590609 is an apocalyptic number.

It is an amenable number.

133761590609 is a deficient number, since it is larger than the sum of its proper divisors (1).

133761590609 is an equidigital number, since it uses as much as digits as its factorization.

133761590609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 50.

The spelling of 133761590609 in words is "one hundred thirty-three billion, seven hundred sixty-one million, five hundred ninety thousand, six hundred nine".