139844160 has 168 divisors, whose sum is σ = 489752640. Its totient is φ = 36615168.

The previous prime is 139844149. The next prime is 139844171. The reversal of 139844160 is 61448931.

It is an interprime number because it is at equal distance from previous prime (139844149) and next prime (139844171).

It is a super-2 number, since 2×139844160² = 39112778172211200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169509 + ... + 170331.

Almost surely, 2^139844160 is an apocalyptic number.

139844160 is a gapful number since it is divisible by the number (10) 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 139844160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244876320).

139844160 is an abundant number, since it is smaller than the sum of its proper divisors (349908480).

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

139844160 is a wasteful number, since it uses less digits than its factorization.

139844160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 139844160 is about 11825.5722905913. The cubic root of 139844160 is about 519.0566723952.

The spelling of 139844160 in words is "one hundred thirty-nine million, eight hundred forty-four thousand, one hundred sixty".