133502143 has 12 divisors (see below), whose sum is σ = 142828840. Its totient is φ = 124706736.

The previous prime is 133502107. The next prime is 133502147. The reversal of 133502143 is 341205331.

It is not a de Polignac number, because 133502143 - 2⁹ = 133501631 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 (133502147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19813 + ... + 25681.

Almost surely, 2^133502143 is an apocalyptic number.

133502143 is a deficient number, since it is larger than the sum of its proper divisors (9326697).

133502143 is an equidigital number, since it uses as much as digits as its factorization.

133502143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958 (or 5935 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 133502143 is about 11554.3127445989. The cubic root of 133502143 is about 511.0884647373.

Adding to 133502143 its reverse (341205331), we get a palindrome (474707474).

The spelling of 133502143 in words is "one hundred thirty-three million, five hundred two thousand, one hundred forty-three".