133521170 has 16 divisors (see below), whose sum is σ = 252987840. Its totient is φ = 50597424.

The previous prime is 133521163. The next prime is 133521203. The reversal of 133521170 is 71125331.

133521170 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351182 + ... + 351561.

It is an arithmetic number, because the mean of its divisors is an integer number (15811740).

Almost surely, 2^133521170 is an apocalyptic number.

133521170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133521170 is a deficient number, since it is larger than the sum of its proper divisors (119466670).

133521170 is a wasteful number, since it uses less digits than its factorization.

133521170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702769.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 133521170 is about 11555.1360874721. The cubic root of 133521170 is about 511.1127440437.

The spelling of 133521170 in words is "one hundred thirty-three million, five hundred twenty-one thousand, one hundred seventy".