139582079 has 16 divisors (see below), whose sum is σ = 172081728. Its totient is φ = 110253312.

The previous prime is 139582061. The next prime is 139582099. The reversal of 139582079 is 970285931.

It is a de Polignac number, because none of the positive numbers 2^k-139582079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139582049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84449 + ... + 86085.

It is an arithmetic number, because the mean of its divisors is an integer number (10755108).

Almost surely, 2^139582079 is an apocalyptic number.

139582079 is a deficient number, since it is larger than the sum of its proper divisors (32499649).

139582079 is a wasteful number, since it uses less digits than its factorization.

139582079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 139582079 is about 11814.4859812012. The cubic root of 139582079 is about 518.7322160836.

The spelling of 139582079 in words is "one hundred thirty-nine million, five hundred eighty-two thousand, seventy-nine".