134981535999 has 8 divisors (see below), whose sum is σ = 180004665472. Its totient is φ = 89973048600.

The previous prime is 134981535989. The next prime is 134981536009. The reversal of 134981535999 is 999535189431.

It is an interprime number because it is at equal distance from previous prime (134981535989) and next prime (134981536009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134981535999 - 2¹⁷ = 134981404927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134981535929) 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, 3638989 + ... + 3675894.

It is an arithmetic number, because the mean of its divisors is an integer number (22500583184).

Almost surely, 2^134981535999 is an apocalyptic number.

134981535999 is a deficient number, since it is larger than the sum of its proper divisors (45023129473).

134981535999 is an equidigital number, since it uses as much as digits as its factorization.

134981535999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7321037.

The product of its digits is 47239200, while the sum is 66.

The spelling of 134981535999 in words is "one hundred thirty-four billion, nine hundred eighty-one million, five hundred thirty-five thousand, nine hundred ninety-nine".