139518282 has 8 divisors (see below), whose sum is σ = 279036576. Its totient is φ = 46506092.

The previous prime is 139518271. The next prime is 139518283. The reversal of 139518282 is 282815931.

It is a sphenic number, since it is the product of 3 distinct primes.

139518282 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 139518282.

It is not an unprimeable number, because it can be changed into a prime (139518283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11626518 + ... + 11626529.

It is an arithmetic number, because the mean of its divisors is an integer number (34879572).

Almost surely, 2^139518282 is an apocalyptic number.

139518282 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

139518282 is a wasteful number, since it uses less digits than its factorization.

139518282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23253052.

The product of its digits is 34560, while the sum is 39.

The square root of 139518282 is about 11811.7857244364. The cubic root of 139518282 is about 518.6531739349.

The spelling of 139518282 in words is "one hundred thirty-nine million, five hundred eighteen thousand, two hundred eighty-two".