133450453 has 4 divisors (see below), whose sum is σ = 137057260. Its totient is φ = 129843648.

The previous prime is 133450451. The next prime is 133450469. The reversal of 133450453 is 354054331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354054331 = 67 ⋅5284393.

It can be written as a sum of positive squares in 2 ways, for example, as 89453764 + 43996689 = 9458^2 + 6633^2 .

It is a cyclic number.

It is not a de Polignac number, because 133450453 - 2¹ = 133450451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133450451) 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, 1803348 + ... + 1803421.

It is an arithmetic number, because the mean of its divisors is an integer number (34264315).

Almost surely, 2^133450453 is an apocalyptic number.

It is an amenable number.

133450453 is a deficient number, since it is larger than the sum of its proper divisors (3606807).

133450453 is an equidigital number, since it uses as much as digits as its factorization.

133450453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606806.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 133450453 is about 11552.0757009292. The cubic root of 133450453 is about 511.0224943280.

It can be divided in two parts, 133450 and 453, that added together give a triangular number (133903 = T₅₁₇).

The spelling of 133450453 in words is "one hundred thirty-three million, four hundred fifty thousand, four hundred fifty-three".