135987102719 has 8 divisors (see below), whose sum is σ = 146484845472. Its totient is φ = 125494673760.

The previous prime is 135987102709. The next prime is 135987102733. The reversal of 135987102719 is 917201789531.

It is a happy number.

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-135987102719 is a prime.

It is a super-2 number, since 2×135987102719² (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 (135987102709) 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, 1275212 + ... + 1377729.

It is an arithmetic number, because the mean of its divisors is an integer number (18310605684).

Almost surely, 2^135987102719 is an apocalyptic number.

135987102719 is a deficient number, since it is larger than the sum of its proper divisors (10497742753).

135987102719 is a wasteful number, since it uses less digits than its factorization.

135987102719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656897.

The product of its (nonzero) digits is 952560, while the sum is 53.

The spelling of 135987102719 in words is "one hundred thirty-five billion, nine hundred eighty-seven million, one hundred two thousand, seven hundred nineteen".