133834394 has 4 divisors (see below), whose sum is σ = 200751594. Its totient is φ = 66917196.

The previous prime is 133834369. The next prime is 133834403. The reversal of 133834394 is 493438331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493438331 = 389 ⋅1268479.

It can be written as a sum of positive squares in only one way, i.e., 92064025 + 41770369 = 9595^2 + 6463^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33458597 + ... + 33458600.

Almost surely, 2^133834394 is an apocalyptic number.

133834394 is a deficient number, since it is larger than the sum of its proper divisors (66917200).

133834394 is an equidigital number, since it uses as much as digits as its factorization.

133834394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66917199.

The product of its digits is 93312, while the sum is 38.

The square root of 133834394 is about 11568.6816016346. The cubic root of 133834394 is about 511.5121008277.

The spelling of 133834394 in words is "one hundred thirty-three million, eight hundred thirty-four thousand, three hundred ninety-four".