133713437 has 8 divisors (see below), whose sum is σ = 157090080. Its totient is φ = 112206960.

The previous prime is 133713409. The next prime is 133713439. The reversal of 133713437 is 734317331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133713437 - 2¹² = 133709341 is a prime.

It is a super-3 number, since 3×133713437³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133713439) 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, 467387 + ... + 467672.

It is an arithmetic number, because the mean of its divisors is an integer number (19636260).

Almost surely, 2^133713437 is an apocalyptic number.

It is an amenable number.

133713437 is a deficient number, since it is larger than the sum of its proper divisors (23376643).

133713437 is a wasteful number, since it uses less digits than its factorization.

133713437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935083.

The product of its digits is 15876, while the sum is 32.

The square root of 133713437 is about 11563.4526418367. The cubic root of 133713437 is about 511.3579560522.

The spelling of 133713437 in words is "one hundred thirty-three million, seven hundred thirteen thousand, four hundred thirty-seven".