133264653 has 4 divisors (see below), whose sum is σ = 177686208. Its totient is φ = 88843100.

The previous prime is 133264619. The next prime is 133264669. The reversal of 133264653 is 356462331.

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: 356462331 = 3 ⋅118820777.

It is a cyclic number.

It is not a de Polignac number, because 133264653 - 2²² = 129070349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133260653) 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, 22210773 + ... + 22210778.

It is an arithmetic number, because the mean of its divisors is an integer number (44421552).

Almost surely, 2^133264653 is an apocalyptic number.

It is an amenable number.

133264653 is a deficient number, since it is larger than the sum of its proper divisors (44421555).

133264653 is an equidigital number, since it uses as much as digits as its factorization.

133264653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44421554.

The product of its digits is 38880, while the sum is 33.

The square root of 133264653 is about 11544.0310550518. The cubic root of 133264653 is about 510.7852225515.

The spelling of 133264653 in words is "one hundred thirty-three million, two hundred sixty-four thousand, six hundred fifty-three".