139467856 has 40 divisors (see below), whose sum is σ = 298963008. Its totient is φ = 62496000.

The previous prime is 139467851. The next prime is 139467863. The reversal of 139467856 is 658764931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139467851) 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, 6916 + ... + 18076.

Almost surely, 2^139467856 is an apocalyptic number.

139467856 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 139467856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149481504).

139467856 is an abundant number, since it is smaller than the sum of its proper divisors (159495152).

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

139467856 is a wasteful number, since it uses less digits than its factorization.

139467856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11251 (or 11245 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 139467856 is about 11809.6509685934. The cubic root of 139467856 is about 518.5906809146.

The spelling of 139467856 in words is "one hundred thirty-nine million, four hundred sixty-seven thousand, eight hundred fifty-six".