139411 has 4 divisors (see below), whose sum is σ = 140800. Its totient is φ = 138024.

The previous prime is 139409. The next prime is 139423. The reversal of 139411 is 114931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139411 - 2¹ = 139409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531 + ... + 748.

It is an arithmetic number, because the mean of its divisors is an integer number (35200).

2¹³⁹⁴¹¹ is an apocalyptic number.

139411 is a deficient number, since it is larger than the sum of its proper divisors (1389).

139411 is a wasteful number, since it uses less digits than its factorization.

139411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388.

The product of its digits is 108, while the sum is 19.

The square root of 139411 is about 373.3778247299. The cubic root of 139411 is about 51.8520201116.

The spelling of 139411 in words is "one hundred thirty-nine thousand, four hundred eleven".