139605234474 has 16 divisors (see below), whose sum is σ = 279261944640. Its totient is φ = 46526498880.

The previous prime is 139605234473. The next prime is 139605234547. The reversal of 139605234474 is 474432506931.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139605234473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2109519 + ... + 2174690.

It is an arithmetic number, because the mean of its divisors is an integer number (17453871540).

Almost surely, 2^139605234474 is an apocalyptic number.

139605234474 is an abundant number, since it is smaller than the sum of its proper divisors (139656710166).

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

139605234474 is a wasteful number, since it uses less digits than its factorization.

139605234474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289645.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 139605234474 in words is "one hundred thirty-nine billion, six hundred five million, two hundred thirty-four thousand, four hundred seventy-four".