139191696 has 200 divisors, whose sum is σ = 469325120. Its totient is φ = 39004416.

The previous prime is 139191673. The next prime is 139191697. The reversal of 139191696 is 696191931.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (139191697) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 607710 + ... + 607938.

Almost surely, 2^139191696 is an apocalyptic number.

139191696 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 139191696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234662560).

139191696 is an abundant number, since it is smaller than the sum of its proper divisors (330133424).

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

139191696 is a wasteful number, since it uses less digits than its factorization.

139191696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 308 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 139191696 is about 11797.9530427952. The cubic root of 139191696 is about 518.2481679835.

The spelling of 139191696 in words is "one hundred thirty-nine million, one hundred ninety-one thousand, six hundred ninety-six".