133142263 has 4 divisors (see below), whose sum is σ = 133328160. Its totient is φ = 132956368.

The previous prime is 133142221. The next prime is 133142267. The reversal of 133142263 is 362241331.

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

It is a cyclic number.

It is not a de Polignac number, because 133142263 - 2²¹ = 131045111 is a prime.

It is a super-2 number, since 2×133142263² = 35453724393522338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133142267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91870 + ... + 93307.

It is an arithmetic number, because the mean of its divisors is an integer number (33332040).

Almost surely, 2^133142263 is an apocalyptic number.

133142263 is a deficient number, since it is larger than the sum of its proper divisors (185897).

133142263 is an equidigital number, since it uses as much as digits as its factorization.

133142263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185896.

The product of its digits is 2592, while the sum is 25.

The square root of 133142263 is about 11538.7288294682. The cubic root of 133142263 is about 510.6288066036.

Adding to 133142263 its reverse (362241331), we get a palindrome (495383594).

The spelling of 133142263 in words is "one hundred thirty-three million, one hundred forty-two thousand, two hundred sixty-three".