133231310 has 16 divisors (see below), whose sum is σ = 241290576. Its totient is φ = 52964928.

The previous prime is 133231303. The next prime is 133231313. The reversal of 133231310 is 13132331.

It is a super-2 number, since 2×133231310² = 35501163928632200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133231313) 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 7 ways as a sum of consecutive naturals, for example, 39239 + ... + 42498.

It is an arithmetic number, because the mean of its divisors is an integer number (15080661).

Almost surely, 2^133231310 is an apocalyptic number.

133231310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133231310 is a deficient number, since it is larger than the sum of its proper divisors (108059266).

133231310 is a wasteful number, since it uses less digits than its factorization.

133231310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81907.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133231310 is about 11542.5867984607. The cubic root of 133231310 is about 510.7426192758.

Adding to 133231310 its reverse (13132331), we get a palindrome (146363641).

It can be divided in two parts, 13 and 3231310, that added together give a palindrome (3231323).

The spelling of 133231310 in words is "one hundred thirty-three million, two hundred thirty-one thousand, three hundred ten".