133491334 has 4 divisors (see below), whose sum is σ = 200237004. Its totient is φ = 66745666.

The previous prime is 133491331. The next prime is 133491341. The reversal of 133491334 is 433194331.

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

It is a junction number, because it is equal to n+sod(n) for n = 133491296 and 133491305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133491331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33372832 + ... + 33372835.

It is an arithmetic number, because the mean of its divisors is an integer number (50059251).

Almost surely, 2^133491334 is an apocalyptic number.

133491334 is a deficient number, since it is larger than the sum of its proper divisors (66745670).

133491334 is an equidigital number, since it uses as much as digits as its factorization.

133491334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66745669.

The product of its digits is 11664, while the sum is 31.

The square root of 133491334 is about 11553.8449877086. The cubic root of 133491334 is about 511.0746709405.

The spelling of 133491334 in words is "one hundred thirty-three million, four hundred ninety-one thousand, three hundred thirty-four".