139450 has 12 divisors (see below), whose sum is σ = 259470. Its totient is φ = 55760.

The previous prime is 139439. The next prime is 139457. The reversal of 139450 is 54931.

It can be written as a sum of positive squares in 3 ways, for example, as 110889 + 28561 = 333^2 + 169^2 .

It is not an unprimeable number, because it can be changed into a prime (139457) 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 5 ways as a sum of consecutive naturals, for example, 1345 + ... + 1444.

2¹³⁹⁴⁵⁰ is an apocalyptic number.

139450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139450 is a deficient number, since it is larger than the sum of its proper divisors (120020).

139450 is a wasteful number, since it uses less digits than its factorization.

139450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801 (or 2796 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 139450 is about 373.4300469968. The cubic root of 139450 is about 51.8568548335.

It can be divided in two parts, 1394 and 50, that added together give a square (1444 = 38²).

The spelling of 139450 in words is "one hundred thirty-nine thousand, four hundred fifty".