133140453 has 4 divisors (see below), whose sum is σ = 177520608. Its totient is φ = 88760300.

The previous prime is 133140451. The next prime is 133140461. The reversal of 133140453 is 354041331.

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.

It is a cyclic number.

It is not a de Polignac number, because 133140453 - 2¹ = 133140451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133140451) 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, 22190073 + ... + 22190078.

It is an arithmetic number, because the mean of its divisors is an integer number (44380152).

Almost surely, 2^133140453 is an apocalyptic number.

It is an amenable number.

133140453 is a deficient number, since it is larger than the sum of its proper divisors (44380155).

133140453 is an equidigital number, since it uses as much as digits as its factorization.

133140453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44380154.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 133140453 is about 11538.6503976852. The cubic root of 133140453 is about 510.6264926819.

Adding to 133140453 its reverse (354041331), we get a palindrome (487181784).

The spelling of 133140453 in words is "one hundred thirty-three million, one hundred forty thousand, four hundred fifty-three".