133557537337 has 8 divisors (see below), whose sum is σ = 152648442176. Its totient is φ = 114469446672.

The previous prime is 133557537319. The next prime is 133557537353. The reversal of 133557537337 is 733735755331.

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

It is not a de Polignac number, because 133557537337 - 2³¹ = 131410053689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133557537397) 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, 600843 + ... + 792544.

It is an arithmetic number, because the mean of its divisors is an integer number (19081055272).

Almost surely, 2^133557537337 is an apocalyptic number.

It is an amenable number.

133557537337 is a deficient number, since it is larger than the sum of its proper divisors (19090904839).

133557537337 is a wasteful number, since it uses less digits than its factorization.

133557537337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407087.

The product of its digits is 10418625, while the sum is 52.

The spelling of 133557537337 in words is "one hundred thirty-three billion, five hundred fifty-seven million, five hundred thirty-seven thousand, three hundred thirty-seven".