133404937 has 4 divisors (see below), whose sum is σ = 133526340. Its totient is φ = 133283536.

The previous prime is 133404923. The next prime is 133404989. The reversal of 133404937 is 739404331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 739404331 = 1427 ⋅518153.

It can be written as a sum of positive squares in 2 ways, for example, as 43837641 + 89567296 = 6621^2 + 9464^2 .

It is a cyclic number.

It is not a de Polignac number, because 133404937 - 2⁷ = 133404809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133404137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59038 + ... + 61255.

It is an arithmetic number, because the mean of its divisors is an integer number (33381585).

Almost surely, 2^133404937 is an apocalyptic number.

It is an amenable number.

133404937 is a deficient number, since it is larger than the sum of its proper divisors (121403).

133404937 is a wasteful number, since it uses less digits than its factorization.

133404937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121402.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 133404937 is about 11550.1054973537. The cubic root of 133404937 is about 510.9643895053.

The spelling of 133404937 in words is "one hundred thirty-three million, four hundred four thousand, nine hundred thirty-seven".