139163216 has 40 divisors (see below), whose sum is σ = 285886464. Its totient is φ = 65508480.

The previous prime is 139163209. The next prime is 139163231. The reversal of 139163216 is 612361931.

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, 14561 + ... + 22143.

Almost surely, 2^139163216 is an apocalyptic number.

139163216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139163216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142943232).

139163216 is an abundant number, since it is smaller than the sum of its proper divisors (146723248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139163216 is a wasteful number, since it uses less digits than its factorization.

139163216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7659 (or 7653 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 139163216 is about 11796.7459920098. The cubic root of 139163216 is about 518.2128193359.

The spelling of 139163216 in words is "one hundred thirty-nine million, one hundred sixty-three thousand, two hundred sixteen".