133013143 has 4 divisors (see below), whose sum is σ = 136257408. Its totient is φ = 129768880.

The previous prime is 133013141. The next prime is 133013171. The reversal of 133013143 is 341310331.

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 133013143 - 2¹ = 133013141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133013143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133013141) 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 3 ways as a sum of consecutive naturals, for example, 1622071 + ... + 1622152.

It is an arithmetic number, because the mean of its divisors is an integer number (34064352).

Almost surely, 2^133013143 is an apocalyptic number.

133013143 is a deficient number, since it is larger than the sum of its proper divisors (3244265).

133013143 is an equidigital number, since it uses as much as digits as its factorization.

133013143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3244264.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 133013143 is about 11533.1324019106. The cubic root of 133013143 is about 510.4636856895.

Adding to 133013143 its reverse (341310331), we get a palindrome (474323474).

The spelling of 133013143 in words is "one hundred thirty-three million, thirteen thousand, one hundred forty-three".