133449863 has 8 divisors (see below), whose sum is σ = 142571520. Its totient is φ = 124538040.

The previous prime is 133449857. The next prime is 133449889. The reversal of 133449863 is 368944331.

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 133449863 - 2²⁶ = 66340999 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 133449863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133449803) 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, 51143 + ... + 53688.

It is an arithmetic number, because the mean of its divisors is an integer number (17821440).

Almost surely, 2^133449863 is an apocalyptic number.

133449863 is a deficient number, since it is larger than the sum of its proper divisors (9121657).

133449863 is a wasteful number, since it uses less digits than its factorization.

133449863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104917.

The product of its digits is 186624, while the sum is 41.

The square root of 133449863 is about 11552.0501643648. The cubic root of 133449863 is about 511.0217412303.

The spelling of 133449863 in words is "one hundred thirty-three million, four hundred forty-nine thousand, eight hundred sixty-three".