133404867 has 16 divisors (see below), whose sum is σ = 198190080. Its totient is φ = 88687656.

The previous prime is 133404863. The next prime is 133404883. The reversal of 133404867 is 768404331.

133404867 is a `hidden beast` number, since 133 + 40 + 486 + 7 = 666.

It is not a de Polignac number, because 133404867 - 2² = 133404863 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (133404863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3178 + ... + 16640.

It is an arithmetic number, because the mean of its divisors is an integer number (12386880).

Almost surely, 2^133404867 is an apocalyptic number.

133404867 is a deficient number, since it is larger than the sum of its proper divisors (64785213).

133404867 is a wasteful number, since it uses less digits than its factorization.

133404867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13839 (or 13833 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 133404867 is about 11550.1024670779. The cubic root of 133404867 is about 510.9643001345.

The spelling of 133404867 in words is "one hundred thirty-three million, four hundred four thousand, eight hundred sixty-seven".