133542863 has 8 divisors (see below), whose sum is σ = 137047680. Its totient is φ = 130049920.

The previous prime is 133542833. The next prime is 133542911. The reversal of 133542863 is 368245331.

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

It is a cyclic number.

It is not a de Polignac number, because 133542863 - 2¹⁶ = 133477327 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 (133542833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22658 + ... + 27936.

It is an arithmetic number, because the mean of its divisors is an integer number (17130960).

Almost surely, 2^133542863 is an apocalyptic number.

133542863 is a deficient number, since it is larger than the sum of its proper divisors (3504817).

133542863 is an equidigital number, since it uses as much as digits as its factorization.

133542863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937.

The product of its digits is 51840, while the sum is 35.

The square root of 133542863 is about 11556.0747228460. The cubic root of 133542863 is about 511.1404224718.

The spelling of 133542863 in words is "one hundred thirty-three million, five hundred forty-two thousand, eight hundred sixty-three".