133198937937 has 24 divisors (see below), whose sum is σ = 207372243624. Its totient is φ = 81899783424.

The previous prime is 133198937891. The next prime is 133198937939. The reversal of 133198937937 is 739739891331.

It can be written as a sum of positive squares in 4 ways, for example, as 20711815056 + 112487122881 = 143916^2 + 335391^2 .

It is not a de Polignac number, because 133198937937 - 2⁶ = 133198937873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133198937939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 337558 + ... + 616719.

It is an arithmetic number, because the mean of its divisors is an integer number (8640510151).

Almost surely, 2^133198937937 is an apocalyptic number.

It is an amenable number.

133198937937 is a deficient number, since it is larger than the sum of its proper divisors (74173305687).

133198937937 is a wasteful number, since it uses less digits than its factorization.

133198937937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955489 (or 955486 counting only the distinct ones).

The product of its digits is 23147208, while the sum is 63.

The spelling of 133198937937 in words is "one hundred thirty-three billion, one hundred ninety-eight million, nine hundred thirty-seven thousand, nine hundred thirty-seven".