133840740837 has 4 divisors (see below), whose sum is σ = 178454321120. Its totient is φ = 89227160556.

The previous prime is 133840740791. The next prime is 133840740853. The reversal of 133840740837 is 738047048331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 133840740837 - 2²⁴ = 133823963621 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 (133840745837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22306790137 + ... + 22306790142.

It is an arithmetic number, because the mean of its divisors is an integer number (44613580280).

Almost surely, 2^133840740837 is an apocalyptic number.

It is an amenable number.

133840740837 is a deficient number, since it is larger than the sum of its proper divisors (44613580283).

133840740837 is an equidigital number, since it uses as much as digits as its factorization.

133840740837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44613580282.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 133840740837 in words is "one hundred thirty-three billion, eight hundred forty million, seven hundred forty thousand, eight hundred thirty-seven".