133553156 has 48 divisors (see below), whose sum is σ = 274482432. Its totient is φ = 56179200.

The previous prime is 133553131. The next prime is 133553159. The reversal of 133553156 is 651355331.

133553156 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (133553159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44165 + ... + 47091.

It is an arithmetic number, because the mean of its divisors is an integer number (5718384).

Almost surely, 2^133553156 is an apocalyptic number.

It is an amenable number.

133553156 is an abundant number, since it is smaller than the sum of its proper divisors (140929276).

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

133553156 is a wasteful number, since it uses less digits than its factorization.

133553156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020 (or 3018 counting only the distinct ones).

The product of its digits is 20250, while the sum is 32.

The square root of 133553156 is about 11556.5200644485. The cubic root of 133553156 is about 511.1535544184.

The spelling of 133553156 in words is "one hundred thirty-three million, five hundred fifty-three thousand, one hundred fifty-six".