139847950 has 48 divisors (see below), whose sum is σ = 300476304. Its totient is φ = 47859200.

The previous prime is 139847927. The next prime is 139847951. The reversal of 139847950 is 59748931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 139847950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139847951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1872 + ... + 16828.

It is an arithmetic number, because the mean of its divisors is an integer number (6259923).

Almost surely, 2^139847950 is an apocalyptic number.

139847950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139847950 is an abundant number, since it is smaller than the sum of its proper divisors (160628354).

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

139847950 is a wasteful number, since it uses less digits than its factorization.

139847950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14997 (or 14992 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 139847950 is about 11825.7325354500. The cubic root of 139847950 is about 519.0613614410.

The spelling of 139847950 in words is "one hundred thirty-nine million, eight hundred forty-seven thousand, nine hundred fifty".