139542519236 has 12 divisors (see below), whose sum is σ = 244369830012. Its totient is φ = 69722567808.

The previous prime is 139542519227. The next prime is 139542519241. The reversal of 139542519236 is 632915245931.

139542519236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 77712712900 + 61829806336 = 278770^2 + 248656^2 .

It is a super-2 number, since 2×139542519236² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12166505 + ... + 12177968.

It is an arithmetic number, because the mean of its divisors is an integer number (20364152501).

Almost surely, 2^139542519236 is an apocalyptic number.

It is an amenable number.

139542519236 is a deficient number, since it is larger than the sum of its proper divisors (104827310776).

139542519236 is a wasteful number, since it uses less digits than its factorization.

139542519236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24345910 (or 24345908 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 50.

The spelling of 139542519236 in words is "one hundred thirty-nine billion, five hundred forty-two million, five hundred nineteen thousand, two hundred thirty-six".