133256265 has 8 divisors (see below), whose sum is σ = 213210048. Its totient is φ = 71070000.

The previous prime is 133256261. The next prime is 133256281. The reversal of 133256265 is 562652331.

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

It is not a de Polignac number, because 133256265 - 2² = 133256261 is a prime.

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, 4441861 + ... + 4441890.

It is an arithmetic number, because the mean of its divisors is an integer number (26651256).

Almost surely, 2^133256265 is an apocalyptic number.

133256265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133256265 is a deficient number, since it is larger than the sum of its proper divisors (79953783).

133256265 is an equidigital number, since it uses as much as digits as its factorization.

133256265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8883759.

The product of its digits is 32400, while the sum is 33.

The square root of 133256265 is about 11543.6677446988. The cubic root of 133256265 is about 510.7745056403.

The spelling of 133256265 in words is "one hundred thirty-three million, two hundred fifty-six thousand, two hundred sixty-five".