139677650 has 24 divisors (see below), whose sum is σ = 296915520. Its totient is φ = 47889360.

The previous prime is 139677641. The next prime is 139677667. The reversal of 139677650 is 56776931.

139677650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199190 + ... + 199889.

It is an arithmetic number, because the mean of its divisors is an integer number (12371480).

Almost surely, 2^139677650 is an apocalyptic number.

139677650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139677650 is an abundant number, since it is smaller than the sum of its proper divisors (157237870).

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

139677650 is a wasteful number, since it uses less digits than its factorization.

139677650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399098 (or 399093 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 139677650 is about 11818.5299424252. The cubic root of 139677650 is about 518.8505800038.

The spelling of 139677650 in words is "one hundred thirty-nine million, six hundred seventy-seven thousand, six hundred fifty".