135964255919 has 8 divisors (see below), whose sum is σ = 143965373328. Its totient is φ = 127963496320.

The previous prime is 135964255813. The next prime is 135964255979. The reversal of 135964255919 is 919552469531.

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-135964255919 is a prime.

It is a super-2 number, since 2×135964255919² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135964255979) 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, 1449104 + ... + 1540074.

It is an arithmetic number, because the mean of its divisors is an integer number (17995671666).

Almost surely, 2^135964255919 is an apocalyptic number.

135964255919 is a deficient number, since it is larger than the sum of its proper divisors (8001117409).

135964255919 is an equidigital number, since it uses as much as digits as its factorization.

135964255919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178905.

The product of its digits is 13122000, while the sum is 59.

The spelling of 135964255919 in words is "one hundred thirty-five billion, nine hundred sixty-four million, two hundred fifty-five thousand, nine hundred nineteen".