133021210 has 16 divisors (see below), whose sum is σ = 273643776. Its totient is φ = 45607248.

The previous prime is 133021201. The next prime is 133021211. The reversal of 133021210 is 12120331.

It is not an unprimeable number, because it can be changed into a prime (133021211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950082 + ... + 950221.

It is an arithmetic number, because the mean of its divisors is an integer number (17102736).

Almost surely, 2^133021210 is an apocalyptic number.

133021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133021210 is an abundant number, since it is smaller than the sum of its proper divisors (140622566).

133021210 is a wasteful number, since it uses less digits than its factorization.

133021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900317.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 133021210 is about 11533.4821281346. The cubic root of 133021210 is about 510.4740050390.

Adding to 133021210 its reverse (12120331), we get a palindrome (145141541).

The spelling of 133021210 in words is "one hundred thirty-three million, twenty-one thousand, two hundred ten".