133502453 has 4 divisors (see below), whose sum is σ = 152574240. Its totient is φ = 114430668.

The previous prime is 133502449. The next prime is 133502477. The reversal of 133502453 is 354205331.

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: 354205331 = 967 ⋅366293.

It is a cyclic number.

It is not a de Polignac number, because 133502453 - 2² = 133502449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133502423) 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, 9535883 + ... + 9535896.

It is an arithmetic number, because the mean of its divisors is an integer number (38143560).

Almost surely, 2^133502453 is an apocalyptic number.

It is an amenable number.

133502453 is a deficient number, since it is larger than the sum of its proper divisors (19071787).

133502453 is an equidigital number, since it uses as much as digits as its factorization.

133502453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19071786.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 133502453 is about 11554.3261594954. The cubic root of 133502453 is about 511.0888603297.

Adding to 133502453 its reverse (354205331), we get a palindrome (487707784).

The spelling of 133502453 in words is "one hundred thirty-three million, five hundred two thousand, four hundred fifty-three".