133253283 has 16 divisors (see below), whose sum is σ = 191379456. Its totient is φ = 82230720.

The previous prime is 133253273. The next prime is 133253287. The reversal of 133253283 is 382352331.

It is not a de Polignac number, because 133253283 - 2⁸ = 133253027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133253283.

It is not an unprimeable number, because it can be changed into a prime (133253287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29010 + ... + 33287.

It is an arithmetic number, because the mean of its divisors is an integer number (11961216).

Almost surely, 2^133253283 is an apocalyptic number.

133253283 is a deficient number, since it is larger than the sum of its proper divisors (58126173).

133253283 is a wasteful number, since it uses less digits than its factorization.

133253283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62354.

The product of its digits is 12960, while the sum is 30.

The square root of 133253283 is about 11543.5385822546. The cubic root of 133253283 is about 510.7706955857.

It can be divided in two parts, 1332 and 53283, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 133253283 in words is "one hundred thirty-three million, two hundred fifty-three thousand, two hundred eighty-three".