133454233 has 16 divisors (see below), whose sum is σ = 162267840. Its totient is φ = 108172800.

The previous prime is 133454231. The next prime is 133454261. The reversal of 133454233 is 332454331.

It is a cyclic number.

It is not a de Polignac number, because 133454233 - 2¹ = 133454231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133454231) 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, 15228 + ... + 22333.

It is an arithmetic number, because the mean of its divisors is an integer number (10141740).

Almost surely, 2^133454233 is an apocalyptic number.

It is an amenable number.

133454233 is a deficient number, since it is larger than the sum of its proper divisors (28813607).

133454233 is a wasteful number, since it uses less digits than its factorization.

133454233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37608.

The product of its digits is 12960, while the sum is 28.

The square root of 133454233 is about 11552.2393067318. The cubic root of 133454233 is about 511.0273192069.

It can be divided in two parts, 13345 and 4233, that added together give a triangular number (17578 = T₁₈₇).

The spelling of 133454233 in words is "one hundred thirty-three million, four hundred fifty-four thousand, two hundred thirty-three".