139567 has 4 divisors (see below), whose sum is σ = 140400. Its totient is φ = 138736.

The previous prime is 139547. The next prime is 139571. The reversal of 139567 is 765931.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 139567 - 2⁷ = 139439 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139537) 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, 67 + ... + 532.

It is an arithmetic number, because the mean of its divisors is an integer number (35100).

2¹³⁹⁵⁶⁷ is an apocalyptic number.

139567 is a deficient number, since it is larger than the sum of its proper divisors (833).

139567 is an equidigital number, since it uses as much as digits as its factorization.

139567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832.

The product of its digits is 5670, while the sum is 31.

The square root of 139567 is about 373.5866699977. The cubic root of 139567 is about 51.8713535928.

The spelling of 139567 in words is "one hundred thirty-nine thousand, five hundred sixty-seven".