133237543837 has 8 divisors (see below), whose sum is σ = 133466984280. Its totient is φ = 133008221760.

The previous prime is 133237543823. The next prime is 133237543841. The reversal of 133237543837 is 738345732331.

It can be written as a sum of positive squares in 4 ways, for example, as 24183049081 + 109054494756 = 155509^2 + 330234^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133237543837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133237540837) 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, 2392287 + ... + 2447347.

It is an arithmetic number, because the mean of its divisors is an integer number (16683373035).

Almost surely, 2^133237543837 is an apocalyptic number.

It is an amenable number.

133237543837 is a deficient number, since it is larger than the sum of its proper divisors (229440443).

133237543837 is an equidigital number, since it uses as much as digits as its factorization.

133237543837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59183.

The product of its digits is 3810240, while the sum is 49.

The spelling of 133237543837 in words is "one hundred thirty-three billion, two hundred thirty-seven million, five hundred forty-three thousand, eight hundred thirty-seven".