133161078 has 16 divisors (see below), whose sum is σ = 268909056. Its totient is φ = 43955880.

The previous prime is 133161073. The next prime is 133161079. The reversal of 133161078 is 870161331.

133161078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133161073) 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, 107118 + ... + 108353.

It is an arithmetic number, because the mean of its divisors is an integer number (16806816).

Almost surely, 2^133161078 is an apocalyptic number.

133161078 is an abundant number, since it is smaller than the sum of its proper divisors (135747978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133161078 is a wasteful number, since it uses less digits than its factorization.

133161078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215579.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 133161078 is about 11539.5440984469. The cubic root of 133161078 is about 510.6528586421.

The spelling of 133161078 in words is "one hundred thirty-three million, one hundred sixty-one thousand, seventy-eight".