139247135524 has 36 divisors (see below), whose sum is σ = 300141942156. Its totient is φ = 56166910464.

The previous prime is 139247135497. The next prime is 139247135539. The reversal of 139247135524 is 425531742931.

It can be written as a sum of positive squares in 2 ways, for example, as 116575810624 + 22671324900 = 341432^2 + 150570^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20892097 + ... + 20898760.

It is an arithmetic number, because the mean of its divisors is an integer number (8337276171).

Almost surely, 2^139247135524 is an apocalyptic number.

139247135524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139247135524 is an abundant number, since it is smaller than the sum of its proper divisors (160894806632).

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

139247135524 is a wasteful number, since it uses less digits than its factorization.

139247135524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41790892 (or 41790883 counting only the distinct ones).

The product of its digits is 907200, while the sum is 46.

The spelling of 139247135524 in words is "one hundred thirty-nine billion, two hundred forty-seven million, one hundred thirty-five thousand, five hundred twenty-four".