133421434469 has 2 divisors, whose sum is σ = 133421434470. Its totient is φ = 133421434468.

The previous prime is 133421434429. The next prime is 133421434501. The reversal of 133421434469 is 964434124331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93156196225 + 40265238244 = 305215^2 + 200662^2 .

It is a cyclic number.

It is not a de Polignac number, because 133421434469 - 2²⁰ = 133420385893 is a prime.

It is a super-2 number, since 2×133421434469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133421434429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66710717234 + 66710717235.

It is an arithmetic number, because the mean of its divisors is an integer number (66710717235).

Almost surely, 2^133421434469 is an apocalyptic number.

It is an amenable number.

133421434469 is a deficient number, since it is larger than the sum of its proper divisors (1).

133421434469 is an equidigital number, since it uses as much as digits as its factorization.

133421434469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 44.

The spelling of 133421434469 in words is "one hundred thirty-three billion, four hundred twenty-one million, four hundred thirty-four thousand, four hundred sixty-nine".