133130453 has 4 divisors (see below), whose sum is σ = 134146848. Its totient is φ = 132114060.

The previous prime is 133130441. The next prime is 133130471. The reversal of 133130453 is 354031331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354031331 = 3533 ⋅100207.

It is a cyclic number.

It is not a de Polignac number, because 133130453 - 2⁸ = 133130197 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 (133130353) 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, 508001 + ... + 508262.

It is an arithmetic number, because the mean of its divisors is an integer number (33536712).

Almost surely, 2^133130453 is an apocalyptic number.

It is an amenable number.

133130453 is a deficient number, since it is larger than the sum of its proper divisors (1016395).

133130453 is a wasteful number, since it uses less digits than its factorization.

133130453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016394.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 133130453 is about 11538.2170633075. The cubic root of 133130453 is about 510.6137082059.

Adding to 133130453 its reverse (354031331), we get a palindrome (487161784).

The spelling of 133130453 in words is "one hundred thirty-three million, one hundred thirty thousand, four hundred fifty-three".