135783440737 has 4 divisors (see below), whose sum is σ = 155181075136. Its totient is φ = 116385806340.

The previous prime is 135783440731. The next prime is 135783440747. The reversal of 135783440737 is 737044387531.

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 a cyclic number.

It is not a de Polignac number, because 135783440737 - 2²⁷ = 135649223009 is a prime.

It is a super-2 number, since 2×135783440737² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135783440731) 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, 9698817189 + ... + 9698817202.

It is an arithmetic number, because the mean of its divisors is an integer number (38795268784).

Almost surely, 2^135783440737 is an apocalyptic number.

It is an amenable number.

135783440737 is a deficient number, since it is larger than the sum of its proper divisors (19397634399).

135783440737 is an equidigital number, since it uses as much as digits as its factorization.

135783440737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19397634398.

The product of its (nonzero) digits is 5927040, while the sum is 52.

The spelling of 135783440737 in words is "one hundred thirty-five billion, seven hundred eighty-three million, four hundred forty thousand, seven hundred thirty-seven".