139790 has 16 divisors (see below), whose sum is σ = 287712. Its totient is φ = 47904.

The previous prime is 139787. The next prime is 139801. The reversal of 139790 is 97931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929 + ... + 1068.

It is an arithmetic number, because the mean of its divisors is an integer number (17982).

2¹³⁹⁷⁹⁰ is an apocalyptic number.

139790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139790 is an abundant number, since it is smaller than the sum of its proper divisors (147922).

It is a weird number, because it is abundant, but not a pseudoperfect number.

139790 is a wasteful number, since it uses less digits than its factorization.

139790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 139790 is about 373.8850090603. The cubic root of 139790 is about 51.8989655559.

It can be divided in two parts, 139 and 790, that added together give a palindrome (929).

The spelling of 139790 in words is "one hundred thirty-nine thousand, seven hundred ninety".