133263613 has 8 divisors (see below), whose sum is σ = 157553280. Its totient is φ = 110286960.

The previous prime is 133263593. The next prime is 133263619. The reversal of 133263613 is 316362331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133263613 - 2²¹ = 131166461 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 (133263619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328033 + ... + 328438.

It is an arithmetic number, because the mean of its divisors is an integer number (19694160).

Almost surely, 2^133263613 is an apocalyptic number.

It is an amenable number.

133263613 is a deficient number, since it is larger than the sum of its proper divisors (24289667).

133263613 is an equidigital number, since it uses as much as digits as its factorization.

133263613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656507.

The product of its digits is 5832, while the sum is 28.

The square root of 133263613 is about 11543.9860100400. The cubic root of 133263613 is about 510.7838938220.

The spelling of 133263613 in words is "one hundred thirty-three million, two hundred sixty-three thousand, six hundred thirteen".