133131143 has 12 divisors (see below), whose sum is σ = 141285312. Its totient is φ = 125314560.

The previous prime is 133131137. The next prime is 133131149. The reversal of 133131143 is 341131331.

It is an interprime number because it is at equal distance from previous prime (133131137) and next prime (133131149).

It is not a de Polignac number, because 133131143 - 2⁴ = 133131127 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 (133131149) 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 11 ways as a sum of consecutive naturals, for example, 40871 + ... + 44007.

It is an arithmetic number, because the mean of its divisors is an integer number (11773776).

Almost surely, 2^133131143 is an apocalyptic number.

133131143 is a deficient number, since it is larger than the sum of its proper divisors (8154169).

133131143 is an equidigital number, since it uses as much as digits as its factorization.

133131143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242 (or 3205 counting only the distinct ones).

The product of its digits is 324, while the sum is 20.

The square root of 133131143 is about 11538.2469639023. The cubic root of 133131143 is about 510.6145903553.

Adding to 133131143 its reverse (341131331), we get a palindrome (474262474).

The spelling of 133131143 in words is "one hundred thirty-three million, one hundred thirty-one thousand, one hundred forty-three".