133886481 has 8 divisors (see below), whose sum is σ = 180356064. Its totient is φ = 88337280.

The previous prime is 133886471. The next prime is 133886491. The reversal of 133886481 is 184688331.

It is an interprime number because it is at equal distance from previous prime (133886471) and next prime (133886491).

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

It is not a de Polignac number, because 133886481 - 2⁵ = 133886449 is a prime.

It is a super-2 number, since 2×133886481² = 35851179589126722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133886471) 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, 229755 + ... + 230336.

It is an arithmetic number, because the mean of its divisors is an integer number (22544508).

Almost surely, 2^133886481 is an apocalyptic number.

It is an amenable number.

133886481 is a deficient number, since it is larger than the sum of its proper divisors (46469583).

133886481 is an equidigital number, since it uses as much as digits as its factorization.

133886481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460191.

The product of its digits is 110592, while the sum is 42.

The square root of 133886481 is about 11570.9325898996. The cubic root of 133886481 is about 511.5784506757.

The spelling of 133886481 in words is "one hundred thirty-three million, eight hundred eighty-six thousand, four hundred eighty-one".