139216895 has 8 divisors (see below), whose sum is σ = 175853040. Its totient is φ = 105511680.

The previous prime is 139216873. The next prime is 139216919. The reversal of 139216895 is 598612931.

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 139216895 - 2⁸ = 139216639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732626 + ... + 732815.

It is an arithmetic number, because the mean of its divisors is an integer number (21981630).

Almost surely, 2^139216895 is an apocalyptic number.

139216895 is a deficient number, since it is larger than the sum of its proper divisors (36636145).

139216895 is a wasteful number, since it uses less digits than its factorization.

139216895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465465.

The product of its digits is 116640, while the sum is 44.

The square root of 139216895 is about 11799.0209339589. The cubic root of 139216895 is about 518.2794403174.

The spelling of 139216895 in words is "one hundred thirty-nine million, two hundred sixteen thousand, eight hundred ninety-five".