133921598210 has 16 divisors (see below), whose sum is σ = 241482540600. Its totient is φ = 53474491776.

The previous prime is 133921598197. The next prime is 133921598227. The reversal of 133921598210 is 12895129331.

It is a happy number.

It is a Cunningham number, because it is equal to 365953²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 102091113289 + 31830484921 = 319517^2 + 178411^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11762465 + ... + 11773844.

Almost surely, 2^133921598210 is an apocalyptic number.

133921598210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133921598210 is a deficient number, since it is larger than the sum of its proper divisors (107560942390).

133921598210 is a wasteful number, since it uses less digits than its factorization.

133921598210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23536885.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 133921598210 in words is "one hundred thirty-three billion, nine hundred twenty-one million, five hundred ninety-eight thousand, two hundred ten".