133864061 has 8 divisors (see below), whose sum is σ = 137092824. Its totient is φ = 130661440.

The previous prime is 133864051. The next prime is 133864091. The reversal of 133864061 is 160468331.

It can be written as a sum of positive squares in 4 ways, for example, as 37136836 + 96727225 = 6094^2 + 9835^2 .

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 133864061 - 2⁶ = 133863997 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 (133864021) 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, 4031 + ... + 16851.

It is an arithmetic number, because the mean of its divisors is an integer number (17136603).

Almost surely, 2^133864061 is an apocalyptic number.

It is an amenable number.

133864061 is a deficient number, since it is larger than the sum of its proper divisors (3228763).

133864061 is a wasteful number, since it uses less digits than its factorization.

133864061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13071.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 133864061 is about 11569.9637423805. The cubic root of 133864061 is about 511.5498935751.

The spelling of 133864061 in words is "one hundred thirty-three million, eight hundred sixty-four thousand, sixty-one".