133204143 has 4 divisors (see below), whose sum is σ = 177605528. Its totient is φ = 88802760.

The previous prime is 133204139. The next prime is 133204147. The reversal of 133204143 is 341402331.

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

It is an interprime number because it is at equal distance from previous prime (133204139) and next prime (133204147).

It is not a de Polignac number, because 133204143 - 2² = 133204139 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 (133204147) 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, 22200688 + ... + 22200693.

It is an arithmetic number, because the mean of its divisors is an integer number (44401382).

Almost surely, 2^133204143 is an apocalyptic number.

133204143 is a deficient number, since it is larger than the sum of its proper divisors (44401385).

133204143 is an equidigital number, since it uses as much as digits as its factorization.

133204143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44401384.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 133204143 is about 11541.4099225355. The cubic root of 133204143 is about 510.7079019911.

Adding to 133204143 its reverse (341402331), we get a palindrome (474606474).

The spelling of 133204143 in words is "one hundred thirty-three million, two hundred four thousand, one hundred forty-three".