133886631 has 8 divisors (see below), whose sum is σ = 178929520. Its totient is φ = 89050752.

The previous prime is 133886629. The next prime is 133886633. The reversal of 133886631 is 136688331.

It is an interprime number because it is at equal distance from previous prime (133886629) and next prime (133886633).

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

It is not a de Polignac number, because 133886631 - 2¹ = 133886629 is a prime.

It is a super-2 number, since 2×133886631² = 35851259921060322, which contains 22 as substring.

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 133886631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133886633) 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, 50236 + ... + 52833.

It is an arithmetic number, because the mean of its divisors is an integer number (22366190).

Almost surely, 2^133886631 is an apocalyptic number.

133886631 is a deficient number, since it is larger than the sum of its proper divisors (45042889).

133886631 is a wasteful number, since it uses less digits than its factorization.

133886631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103505.

The product of its digits is 62208, while the sum is 39.

The square root of 133886631 is about 11570.9390716571. The cubic root of 133886631 is about 511.5786417250.

The spelling of 133886631 in words is "one hundred thirty-three million, eight hundred eighty-six thousand, six hundred thirty-one".