133198735 has 16 divisors (see below), whose sum is σ = 165417120. Its totient is φ = 102896640.

The previous prime is 133198691. The next prime is 133198739. The reversal of 133198735 is 537891331.

It is not a de Polignac number, because 133198735 - 2¹⁷ = 133067663 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133198739) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15655 + ... + 22615.

It is an arithmetic number, because the mean of its divisors is an integer number (10338570).

Almost surely, 2^133198735 is an apocalyptic number.

133198735 is a deficient number, since it is larger than the sum of its proper divisors (32218385).

133198735 is an equidigital number, since it uses as much as digits as its factorization.

133198735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7098.

The product of its digits is 68040, while the sum is 40.

The square root of 133198735 is about 11541.1756333573. The cubic root of 133198735 is about 510.7009904300.

The spelling of 133198735 in words is "one hundred thirty-three million, one hundred ninety-eight thousand, seven hundred thirty-five".