139446 has 24 divisors (see below), whose sum is σ = 309504. Its totient is φ = 45360.

The previous prime is 139439. The next prime is 139457. The reversal of 139446 is 644931.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1035 + ... + 1161.

It is an arithmetic number, because the mean of its divisors is an integer number (12896).

2¹³⁹⁴⁴⁶ is an apocalyptic number.

139446 is an abundant number, since it is smaller than the sum of its proper divisors (170058).

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

139446 is a wasteful number, since it uses less digits than its factorization.

139446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 193 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 139446 is about 373.4246912029. The cubic root of 139446 is about 51.8563590060.

It can be divided in two parts, 139 and 446, that added together give a palindrome (585).

The spelling of 139446 in words is "one hundred thirty-nine thousand, four hundred forty-six".