139282718436 has 27 divisors (see below), whose sum is σ = 352081420873. Its totient is φ = 46426826400.

The previous prime is 139282718401. The next prime is 139282718437. The reversal of 139282718436 is 634817282931.

It is a happy number.

The square root of 139282718436 is 373206.

It is a perfect power (a square), and thus also a powerful number.

139282718436 is a `hidden beast` number, since 1 + 392 + 82 + 71 + 84 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11404958436 + 127877760000 = 106794^2 + 357600^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139282718437) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2208136 + ... + 2270336.

Almost surely, 2^139282718436 is an apocalyptic number.

139282718436 is the 373206-th square number.

It is an amenable number.

139282718436 is an abundant number, since it is smaller than the sum of its proper divisors (212798702437).

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

139282718436 is an frugal number, since it uses more digits than its factorization.

139282718436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124412 (or 62206 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 139282718436 in words is "one hundred thirty-nine billion, two hundred eighty-two million, seven hundred eighteen thousand, four hundred thirty-six".