139498 has 8 divisors (see below), whose sum is σ = 220320. Its totient is φ = 66060.

The previous prime is 139493. The next prime is 139501. The reversal of 139498 is 894931.

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

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (139493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1798 + ... + 1873.

It is an arithmetic number, because the mean of its divisors is an integer number (27540).

2¹³⁹⁴⁹⁸ is an apocalyptic number.

139498 is a deficient number, since it is larger than the sum of its proper divisors (80822).

139498 is a wasteful number, since it uses less digits than its factorization.

139498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692.

The product of its digits is 7776, while the sum is 34.

The square root of 139498 is about 373.4943105323. The cubic root of 139498 is about 51.8628040231.

The spelling of 139498 in words is "one hundred thirty-nine thousand, four hundred ninety-eight".