139479216 has 40 divisors (see below), whose sum is σ = 365405184. Its totient is φ = 45837120.

The previous prime is 139479211. The next prime is 139479217. The reversal of 139479216 is 612974931.

It is not an unprimeable number, because it can be changed into a prime (139479211) 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, 17056 + ... + 23871.

Almost surely, 2^139479216 is an apocalyptic number.

139479216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139479216 is an abundant number, since it is smaller than the sum of its proper divisors (225925968).

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

139479216 is a wasteful number, since it uses less digits than its factorization.

139479216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41009 (or 41003 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 139479216 is about 11810.1319213631. The cubic root of 139479216 is about 518.6047606946.

The spelling of 139479216 in words is "one hundred thirty-nine million, four hundred seventy-nine thousand, two hundred sixteen".