133126543 has 8 divisors (see below), whose sum is σ = 146515536. Its totient is φ = 119952000.

The previous prime is 133126531. The next prime is 133126561. The reversal of 133126543 is 345621331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133126543 is a prime.

It is a super-2 number, since 2×133126543² = 35445352902261698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133126843) 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 7 ways as a sum of consecutive naturals, for example, 52308 + ... + 54793.

It is an arithmetic number, because the mean of its divisors is an integer number (18314442).

Almost surely, 2^133126543 is an apocalyptic number.

133126543 is a deficient number, since it is larger than the sum of its proper divisors (13388993).

133126543 is a wasteful number, since it uses less digits than its factorization.

133126543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107225.

The product of its digits is 6480, while the sum is 28.

The square root of 133126543 is about 11538.0476251401. The cubic root of 133126543 is about 510.6087093017.

Adding to 133126543 its reverse (345621331), we get a palindrome (478747874).

The spelling of 133126543 in words is "one hundred thirty-three million, one hundred twenty-six thousand, five hundred forty-three".