139947414 has 16 divisors (see below), whose sum is σ = 280086960. Its totient is φ = 46617120.

The previous prime is 139947403. The next prime is 139947443. The reversal of 139947414 is 414749931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2532 + ... + 16920.

It is an arithmetic number, because the mean of its divisors is an integer number (17505435).

Almost surely, 2^139947414 is an apocalyptic number.

139947414 is an abundant number, since it is smaller than the sum of its proper divisors (140139546).

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

139947414 is a wasteful number, since it uses less digits than its factorization.

139947414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16015.

The product of its digits is 108864, while the sum is 42.

The square root of 139947414 is about 11829.9371934089. The cubic root of 139947414 is about 519.1843895448.

The spelling of 139947414 in words is "one hundred thirty-nine million, nine hundred forty-seven thousand, four hundred fourteen".