133256271 has 8 divisors (see below), whose sum is σ = 178596400. Its totient is φ = 88376832.

The previous prime is 133256261. The next prime is 133256281. The reversal of 133256271 is 172652331.

It is an interprime number because it is at equal distance from previous prime (133256261) and next prime (133256281).

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

It is not a de Polignac number, because 133256271 - 2¹⁰ = 133255247 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 (133256261) 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, 114496 + ... + 115653.

It is an arithmetic number, because the mean of its divisors is an integer number (22324550).

Almost surely, 2^133256271 is an apocalyptic number.

133256271 is a deficient number, since it is larger than the sum of its proper divisors (45340129).

133256271 is a wasteful number, since it uses less digits than its factorization.

133256271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230345.

The product of its digits is 7560, while the sum is 30.

The square root of 133256271 is about 11543.6680045816. The cubic root of 133256271 is about 510.7745133064.

The spelling of 133256271 in words is "one hundred thirty-three million, two hundred fifty-six thousand, two hundred seventy-one".