139486 has 8 divisors (see below), whose sum is σ = 211680. Its totient is φ = 68928.

The previous prime is 139483. The next prime is 139487. The reversal of 139486 is 684931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139483) 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, 166 + ... + 553.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2¹³⁹⁴⁸⁶ is an apocalyptic number.

139486 is a deficient number, since it is larger than the sum of its proper divisors (72194).

139486 is an equidigital number, since it uses as much as digits as its factorization.

139486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818.

The product of its digits is 5184, while the sum is 31.

The square root of 139486 is about 373.4782456851. The cubic root of 139486 is about 51.8613168537.

It can be divided in two parts, 139 and 486, that added together give a 4-th power (625 = 5⁴).

The spelling of 139486 in words is "one hundred thirty-nine thousand, four hundred eighty-six".