133897699 has 8 divisors (see below), whose sum is σ = 144365760. Its totient is φ = 123453696.

The previous prime is 133897679. The next prime is 133897781. The reversal of 133897699 is 996798331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133897699 - 2⁹ = 133897187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133897679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6534 + ... + 17620.

It is an arithmetic number, because the mean of its divisors is an integer number (18045720).

Almost surely, 2^133897699 is an apocalyptic number.

133897699 is a deficient number, since it is larger than the sum of its proper divisors (10468061).

133897699 is a wasteful number, since it uses less digits than its factorization.

133897699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12029.

The product of its digits is 2204496, while the sum is 55.

The square root of 133897699 is about 11571.4173289187. The cubic root of 133897699 is about 511.5927382193.

The spelling of 133897699 in words is "one hundred thirty-three million, eight hundred ninety-seven thousand, six hundred ninety-nine".