139197 has 4 divisors (see below), whose sum is σ = 185600. Its totient is φ = 92796.

The previous prime is 139187. The next prime is 139199. The reversal of 139197 is 791931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 139197 - 2⁶ = 139133 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

139197 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139197.

It is not an unprimeable number, because it can be changed into a prime (139199) 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, 23197 + ... + 23202.

It is an arithmetic number, because the mean of its divisors is an integer number (46400).

2¹³⁹¹⁹⁷ is an apocalyptic number.

It is an amenable number.

139197 is a deficient number, since it is larger than the sum of its proper divisors (46403).

139197 is an equidigital number, since it uses as much as digits as its factorization.

139197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46402.

The product of its digits is 1701, while the sum is 30.

The square root of 139197 is about 373.0911416799. The cubic root of 139197 is about 51.8254750640.

The spelling of 139197 in words is "one hundred thirty-nine thousand, one hundred ninety-seven".