133617393371401 has 3 divisors (see below), whose sum is σ = 133617404930701. Its totient is φ = 133617381812102.

The previous prime is 133617393371393. The next prime is 133617393371477. The reversal of 133617393371401 is 104173393716331.

It is a happy number.

The square root of 133617393371401 is 11559299.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 133617393371401 - 2³ = 133617393371393 is a prime.

It is a super-2 number, since 2×133617393371401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133617393371701) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 5779650 + ... + 17338948.

Almost surely, 2^{133617393371401} is an apocalyptic number.

133617393371401 is the 11559299-th square number.

133617393371401 is the 5779650-th centered octagonal number.

It is an amenable number.

133617393371401 is a deficient number, since it is larger than the sum of its proper divisors (11559300).

133617393371401 is an frugal number, since it uses more digits than its factorization.

133617393371401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23118598 (or 11559299 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 52.

The spelling of 133617393371401 in words is "one hundred thirty-three trillion, six hundred seventeen billion, three hundred ninety-three million, three hundred seventy-one thousand, four hundred one".