133525263 has 4 divisors (see below), whose sum is σ = 178033688. Its totient is φ = 89016840.

The previous prime is 133525213. The next prime is 133525289. The reversal of 133525263 is 362525331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133525263 - 2²² = 129330959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133525263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133525213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22254208 + ... + 22254213.

It is an arithmetic number, because the mean of its divisors is an integer number (44508422).

Almost surely, 2^133525263 is an apocalyptic number.

133525263 is a deficient number, since it is larger than the sum of its proper divisors (44508425).

133525263 is an equidigital number, since it uses as much as digits as its factorization.

133525263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44508424.

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

The square root of 133525263 is about 11555.3131935054. The cubic root of 133525263 is about 511.1179665940.

The spelling of 133525263 in words is "one hundred thirty-three million, five hundred twenty-five thousand, two hundred sixty-three".