133930669 has 2 divisors, whose sum is σ = 133930670. Its totient is φ = 133930668.

The previous prime is 133930631. The next prime is 133930717. The reversal of 133930669 is 966039331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69722500 + 64208169 = 8350^2 + 8013^2 .

It is a cyclic number.

It is not a de Polignac number, because 133930669 - 2⁹ = 133930157 is a prime.

It is a super-2 number, since 2×133930669² = 35874848197575122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133930619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66965334 + 66965335.

It is an arithmetic number, because the mean of its divisors is an integer number (66965335).

Almost surely, 2^133930669 is an apocalyptic number.

It is an amenable number.

133930669 is a deficient number, since it is larger than the sum of its proper divisors (1).

133930669 is an equidigital number, since it uses as much as digits as its factorization.

133930669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 40.

The square root of 133930669 is about 11572.8418722456. The cubic root of 133930669 is about 511.6347250706.

The spelling of 133930669 in words is "one hundred thirty-three million, nine hundred thirty thousand, six hundred sixty-nine".