133461436639 has 2 divisors, whose sum is σ = 133461436640. Its totient is φ = 133461436638.

The previous prime is 133461436481. The next prime is 133461436649. The reversal of 133461436639 is 936634164331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133461436639 - 2²⁵ = 133427882207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133461436592 and 133461436601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133461436649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66730718319 + 66730718320.

It is an arithmetic number, because the mean of its divisors is an integer number (66730718320).

Almost surely, 2^133461436639 is an apocalyptic number.

133461436639 is a deficient number, since it is larger than the sum of its proper divisors (1).

133461436639 is an equidigital number, since it uses as much as digits as its factorization.

133461436639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 49.

The spelling of 133461436639 in words is "one hundred thirty-three billion, four hundred sixty-one million, four hundred thirty-six thousand, six hundred thirty-nine".