139430 has 16 divisors (see below), whose sum is σ = 255744. Its totient is φ = 54720.

The previous prime is 139429. The next prime is 139439. The reversal of 139430 is 34931.

139430 is nontrivially palindromic in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635 + ... + 825.

It is an arithmetic number, because the mean of its divisors is an integer number (15984).

2¹³⁹⁴³⁰ is an apocalyptic number.

139430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139430 is a deficient number, since it is larger than the sum of its proper divisors (116314).

139430 is a wasteful number, since it uses less digits than its factorization.

139430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 139430 is about 373.4032672594. The cubic root of 139430 is about 51.8543756015.

The spelling of 139430 in words is "one hundred thirty-nine thousand, four hundred thirty".