133899338 has 4 divisors (see below), whose sum is σ = 200849010. Its totient is φ = 66949668.

The previous prime is 133899329. The next prime is 133899413. The reversal of 133899338 is 833998331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 133010089 + 889249 = 11533^2 + 943^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133899292 and 133899301.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33474833 + ... + 33474836.

Almost surely, 2^133899338 is an apocalyptic number.

133899338 is a deficient number, since it is larger than the sum of its proper divisors (66949672).

133899338 is an equidigital number, since it uses as much as digits as its factorization.

133899338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66949671.

The product of its digits is 419904, while the sum is 47.

The square root of 133899338 is about 11571.4881497584. The cubic root of 133899338 is about 511.5948256265.

The spelling of 133899338 in words is "one hundred thirty-three million, eight hundred ninety-nine thousand, three hundred thirty-eight".