133673902 has 4 divisors (see below), whose sum is σ = 200510856. Its totient is φ = 66836950.

The previous prime is 133673893. The next prime is 133673909. The reversal of 133673902 is 209376331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133673909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33418474 + ... + 33418477.

It is an arithmetic number, because the mean of its divisors is an integer number (50127714).

Almost surely, 2^133673902 is an apocalyptic number.

133673902 is a deficient number, since it is larger than the sum of its proper divisors (66836954).

133673902 is an equidigital number, since it uses as much as digits as its factorization.

133673902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66836953.

The product of its (nonzero) digits is 20412, while the sum is 34.

The square root of 133673902 is about 11561.7430346812. The cubic root of 133673902 is about 511.3075534150.

The spelling of 133673902 in words is "one hundred thirty-three million, six hundred seventy-three thousand, nine hundred two".