88215145139 has 8 divisors (see below), whose sum is σ = 100418821632. Its totient is φ = 76708821640.

The previous prime is 88215145127. The next prime is 88215145147. The reversal of 88215145139 is 93154151288.

It is a happy number.

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

It is not a de Polignac number, because 88215145139 - 2³² = 83920177843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88215145093 and 88215145102.

It is not an unprimeable number, because it can be changed into a prime (88215145169) 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, 174337979 + ... + 174338484.

It is an arithmetic number, because the mean of its divisors is an integer number (12552352704).

Almost surely, 2^88215145139 is an apocalyptic number.

88215145139 is a deficient number, since it is larger than the sum of its proper divisors (12203676493).

88215145139 is a wasteful number, since it uses less digits than its factorization.

88215145139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348676497.

The product of its digits is 345600, while the sum is 47.

The spelling of 88215145139 in words is "eighty-eight billion, two hundred fifteen million, one hundred forty-five thousand, one hundred thirty-nine".