133968699 has 6 divisors (see below), whose sum is σ = 193510356. Its totient is φ = 89312460.

The previous prime is 133968697. The next prime is 133968707. The reversal of 133968699 is 996869331.

It is not a de Polignac number, because 133968699 - 2¹ = 133968697 is a prime.

It is a super-2 number, since 2×133968699² = 35895224623505202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133968691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7442697 + ... + 7442714.

It is an arithmetic number, because the mean of its divisors is an integer number (32251726).

Almost surely, 2^133968699 is an apocalyptic number.

133968699 is a deficient number, since it is larger than the sum of its proper divisors (59541657).

133968699 is a wasteful number, since it uses less digits than its factorization.

133968699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14885417 (or 14885414 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 133968699 is about 11574.4848265484. The cubic root of 133968699 is about 511.6831472067.

The spelling of 133968699 in words is "one hundred thirty-three million, nine hundred sixty-eight thousand, six hundred ninety-nine".