133520116 has 6 divisors (see below), whose sum is σ = 233660210. Its totient is φ = 66760056.

The previous prime is 133520039. The next prime is 133520137. The reversal of 133520116 is 611025331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 95648400 + 37871716 = 9780^2 + 6154^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16690011 + ... + 16690018.

Almost surely, 2^133520116 is an apocalyptic number.

It is an amenable number.

133520116 is a deficient number, since it is larger than the sum of its proper divisors (100140094).

133520116 is a wasteful number, since it uses less digits than its factorization.

133520116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33380033 (or 33380031 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 133520116 is about 11555.0904799573. The cubic root of 133520116 is about 511.1113991527. Note that the first 3 decimals are identical.

Adding to 133520116 its reverse (611025331), we get a palindrome (744545447).

The spelling of 133520116 in words is "one hundred thirty-three million, five hundred twenty thousand, one hundred sixteen".