139198475 has 12 divisors (see below), whose sum is σ = 185883936. Its totient is φ = 102792480.

The previous prime is 139198471. The next prime is 139198483. The reversal of 139198475 is 574891931.

It is not a de Polignac number, because 139198475 - 2² = 139198471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139198471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213827 + ... + 214476.

It is an arithmetic number, because the mean of its divisors is an integer number (15490328).

Almost surely, 2^139198475 is an apocalyptic number.

139198475 is a deficient number, since it is larger than the sum of its proper divisors (46685461).

139198475 is a wasteful number, since it uses less digits than its factorization.

139198475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428326 (or 428321 counting only the distinct ones).

The product of its digits is 272160, while the sum is 47.

The square root of 139198475 is about 11798.2403348974. The cubic root of 139198475 is about 518.2565811944.

The spelling of 139198475 in words is "one hundred thirty-nine million, one hundred ninety-eight thousand, four hundred seventy-five".