135985439337 has 16 divisors (see below), whose sum is σ = 199010489088. Its totient is φ = 81909798480.

The previous prime is 135985439323. The next prime is 135985439351. The reversal of 135985439337 is 733934589531.

It is an interprime number because it is at equal distance from previous prime (135985439323) and next prime (135985439351).

It is not a de Polignac number, because 135985439337 - 2¹² = 135985435241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135985439377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12635023 + ... + 12645780.

It is an arithmetic number, because the mean of its divisors is an integer number (12438155568).

Almost surely, 2^135985439337 is an apocalyptic number.

It is an amenable number.

135985439337 is a deficient number, since it is larger than the sum of its proper divisors (63025049751).

135985439337 is a wasteful number, since it uses less digits than its factorization.

135985439337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25280980.

The product of its digits is 36741600, while the sum is 60.

The spelling of 135985439337 in words is "one hundred thirty-five billion, nine hundred eighty-five million, four hundred thirty-nine thousand, three hundred thirty-seven".