139949216 has 48 divisors (see below), whose sum is σ = 302678208. Its totient is φ = 63168000.

The previous prime is 139949213. The next prime is 139949237. The reversal of 139949216 is 612949931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (139949213) 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, 51836 + ... + 54468.

It is an arithmetic number, because the mean of its divisors is an integer number (6305796).

Almost surely, 2^139949216 is an apocalyptic number.

139949216 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 139949216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151339104).

139949216 is an abundant number, since it is smaller than the sum of its proper divisors (162728992).

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

139949216 is a wasteful number, since it uses less digits than its factorization.

139949216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805 (or 2797 counting only the distinct ones).

The product of its digits is 104976, while the sum is 44.

The square root of 139949216 is about 11830.0133558674. The cubic root of 139949216 is about 519.1866179205.

The spelling of 139949216 in words is "one hundred thirty-nine million, nine hundred forty-nine thousand, two hundred sixteen".