133142203 has 4 divisors (see below), whose sum is σ = 133723840. Its totient is φ = 132560568.

The previous prime is 133142171. The next prime is 133142213. The reversal of 133142203 is 302241331.

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 133142203 - 2⁵ = 133142171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133142213) 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, 290475 + ... + 290932.

It is an arithmetic number, because the mean of its divisors is an integer number (33430960).

Almost surely, 2^133142203 is an apocalyptic number.

133142203 is a deficient number, since it is larger than the sum of its proper divisors (581637).

133142203 is an equidigital number, since it uses as much as digits as its factorization.

133142203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581636.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133142203 is about 11538.7262295281. The cubic root of 133142203 is about 510.6287298994.

Adding to 133142203 its reverse (302241331), we get a palindrome (435383534).

It can be divided in two parts, 1331 and 42203, that added together give a palindrome (43534).

The spelling of 133142203 in words is "one hundred thirty-three million, one hundred forty-two thousand, two hundred three".