133671914 has 4 divisors (see below), whose sum is σ = 200507874. Its totient is φ = 66835956.

The previous prime is 133671911. The next prime is 133671919. The reversal of 133671914 is 419176331.

It is a happy number.

133671914 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 124701889 + 8970025 = 11167^2 + 2995^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133671911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33417977 + ... + 33417980.

Almost surely, 2^133671914 is an apocalyptic number.

133671914 is a deficient number, since it is larger than the sum of its proper divisors (66835960).

133671914 is an equidigital number, since it uses as much as digits as its factorization.

133671914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66835959.

The product of its digits is 13608, while the sum is 35.

The square root of 133671914 is about 11561.6570611656. The cubic root of 133671914 is about 511.3050186782.

The spelling of 133671914 in words is "one hundred thirty-three million, six hundred seventy-one thousand, nine hundred fourteen".