139632650 has 24 divisors (see below), whose sum is σ = 260087520. Its totient is φ = 55773360.

The previous prime is 139632637. The next prime is 139632667. The reversal of 139632650 is 56236931.

It is a self number, because there is not a number n which added to its sum of digits gives 139632650.

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, 43811 + ... + 46889.

It is an arithmetic number, because the mean of its divisors is an integer number (10836980).

Almost surely, 2^139632650 is an apocalyptic number.

139632650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139632650 is a deficient number, since it is larger than the sum of its proper divisors (120454870).

139632650 is a wasteful number, since it uses less digits than its factorization.

139632650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998 (or 3993 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 139632650 is about 11816.6259989897. The cubic root of 139632650 is about 518.7948545915.

The spelling of 139632650 in words is "one hundred thirty-nine million, six hundred thirty-two thousand, six hundred fifty".