139238195 has 4 divisors (see below), whose sum is σ = 167085840. Its totient is φ = 111390552.

The previous prime is 139238191. The next prime is 139238201. The reversal of 139238195 is 591832931.

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 139238195 - 2² = 139238191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139238191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13923815 + ... + 13923824.

It is an arithmetic number, because the mean of its divisors is an integer number (41771460).

Almost surely, 2^139238195 is an apocalyptic number.

139238195 is a deficient number, since it is larger than the sum of its proper divisors (27847645).

139238195 is an equidigital number, since it uses as much as digits as its factorization.

139238195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27847644.

The product of its digits is 58320, while the sum is 41.

The square root of 139238195 is about 11799.9235167013. The cubic root of 139238195 is about 518.3058709914.

The spelling of 139238195 in words is "one hundred thirty-nine million, two hundred thirty-eight thousand, one hundred ninety-five".