135985940373 has 64 divisors (see below), whose sum is σ = 193342464000. Its totient is φ = 84919127040.

The previous prime is 135985940359. The next prime is 135985940381. The reversal of 135985940373 is 373049589531.

It is not a de Polignac number, because 135985940373 - 2²⁹ = 135449069461 is a prime.

It is a super-2 number, since 2×135985940373² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135985940323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56683228 + ... + 56685626.

It is an arithmetic number, because the mean of its divisors is an integer number (3020976000).

Almost surely, 2^135985940373 is an apocalyptic number.

It is an amenable number.

135985940373 is a deficient number, since it is larger than the sum of its proper divisors (57356523627).

135985940373 is a wasteful number, since it uses less digits than its factorization.

135985940373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682.

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 135985940373 in words is "one hundred thirty-five billion, nine hundred eighty-five million, nine hundred forty thousand, three hundred seventy-three".