133161064 has 8 divisors (see below), whose sum is σ = 249677010. Its totient is φ = 66580528.

The previous prime is 133161047. The next prime is 133161073. The reversal of 133161064 is 460161331.

It is a happy number.

133161064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 92736900 + 40424164 = 9630^2 + 6358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×133161064² = 35463737931224192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8322559 + ... + 8322574.

Almost surely, 2^133161064 is an apocalyptic number.

It is an amenable number.

133161064 is a deficient number, since it is larger than the sum of its proper divisors (116515946).

133161064 is a wasteful number, since it uses less digits than its factorization.

133161064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16645139 (or 16645135 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 133161064 is about 11539.5434918371. The cubic root of 133161064 is about 510.6528407461.

It can be divided in two parts, 1331610 and 64, that multiplied together give a triangular number (85223040 = T₁₃₀₅₅).

The spelling of 133161064 in words is "one hundred thirty-three million, one hundred sixty-one thousand, sixty-four".