133886747 has 8 divisors (see below), whose sum is σ = 142402176. Its totient is φ = 125442432.

The previous prime is 133886741. The next prime is 133886761. The reversal of 133886747 is 747688331.

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 133886747 - 2⁸ = 133886491 is a prime.

It is a super-2 number, since 2×133886747² = 35851322044484018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133886741) 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, 13868 + ... + 21449.

It is an arithmetic number, because the mean of its divisors is an integer number (17800272).

Almost surely, 2^133886747 is an apocalyptic number.

133886747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

133886747 is a deficient number, since it is larger than the sum of its proper divisors (8515429).

133886747 is a wasteful number, since it uses less digits than its factorization.

133886747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35557.

The product of its digits is 677376, while the sum is 47.

The square root of 133886747 is about 11570.9440842137. The cubic root of 133886747 is about 511.5787894697.

The spelling of 133886747 in words is "one hundred thirty-three million, eight hundred eighty-six thousand, seven hundred forty-seven".