139780696 has 32 divisors (see below), whose sum is σ = 295779600. Its totient is φ = 61344640.

The previous prime is 139780687. The next prime is 139780699. The reversal of 139780696 is 696087931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139780699) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24835 + ... + 29938.

Almost surely, 2^139780696 is an apocalyptic number.

It is an amenable number.

139780696 is an abundant number, since it is smaller than the sum of its proper divisors (155998904).

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

139780696 is a wasteful number, since it uses less digits than its factorization.

139780696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54819 (or 54815 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 139780696 is about 11822.8886487186. Note that the first 3 decimals coincide. The cubic root of 139780696 is about 518.9781411762.

The spelling of 139780696 in words is "one hundred thirty-nine million, seven hundred eighty thousand, six hundred ninety-six".