139228195 has 16 divisors (see below), whose sum is σ = 172339200. Its totient is φ = 107914464.

The previous prime is 139228189. The next prime is 139228237. The reversal of 139228195 is 591822931.

It is a cyclic number.

It is not a de Polignac number, because 139228195 - 2¹⁹ = 138703907 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24756 + ... + 29854.

It is an arithmetic number, because the mean of its divisors is an integer number (10771200).

Almost surely, 2^139228195 is an apocalyptic number.

139228195 is a deficient number, since it is larger than the sum of its proper divisors (33111005).

139228195 is a wasteful number, since it uses less digits than its factorization.

139228195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274.

The product of its digits is 38880, while the sum is 40.

The square root of 139228195 is about 11799.4997775329. The cubic root of 139228195 is about 518.2934625600.

The spelling of 139228195 in words is "one hundred thirty-nine million, two hundred twenty-eight thousand, one hundred ninety-five".