133256253 has 16 divisors (see below), whose sum is σ = 201414080. Its totient is φ = 77687424.

The previous prime is 133256243. The next prime is 133256261. The reversal of 133256253 is 352652331.

It is not a de Polignac number, because 133256253 - 2⁴ = 133256237 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 133256253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133256243) 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, 89176 + ... + 90657.

It is an arithmetic number, because the mean of its divisors is an integer number (12588380).

Almost surely, 2^133256253 is an apocalyptic number.

133256253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

133256253 is a deficient number, since it is larger than the sum of its proper divisors (68157827).

133256253 is a wasteful number, since it uses less digits than its factorization.

133256253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179868.

The product of its digits is 16200, while the sum is 30.

The square root of 133256253 is about 11543.6672249333. The cubic root of 133256253 is about 510.7744903082.

The spelling of 133256253 in words is "one hundred thirty-three million, two hundred fifty-six thousand, two hundred fifty-three".