133306131919 has 2 divisors, whose sum is σ = 133306131920. Its totient is φ = 133306131918.

The previous prime is 133306131899. The next prime is 133306131949. The reversal of 133306131919 is 919131603331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133306131919 - 2⁵ = 133306131887 is a prime.

It is a super-2 number, since 2×133306131919² (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 (133306131949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66653065959 + 66653065960.

It is an arithmetic number, because the mean of its divisors is an integer number (66653065960).

Almost surely, 2^133306131919 is an apocalyptic number.

133306131919 is a deficient number, since it is larger than the sum of its proper divisors (1).

133306131919 is an equidigital number, since it uses as much as digits as its factorization.

133306131919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 40.

It can be divided in two parts, 133306 and 131919, that added together give a square (265225 = 515²).

The spelling of 133306131919 in words is "one hundred thirty-three billion, three hundred six million, one hundred thirty-one thousand, nine hundred nineteen".