139369475 has 24 divisors (see below), whose sum is σ = 201549600. Its totient is φ = 95561760.

The previous prime is 139369421. The next prime is 139369481. The reversal of 139369475 is 574963931.

It is not a de Polignac number, because 139369475 - 2¹⁰ = 139368451 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 23 ways as a sum of consecutive naturals, for example, 449 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (8397900).

Almost surely, 2^139369475 is an apocalyptic number.

139369475 is a deficient number, since it is larger than the sum of its proper divisors (62180125).

139369475 is an equidigital number, since it uses as much as digits as its factorization.

139369475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16284 (or 16265 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 139369475 is about 11805.4849540373. The cubic root of 139369475 is about 518.4687138120.

The spelling of 139369475 in words is "one hundred thirty-nine million, three hundred sixty-nine thousand, four hundred seventy-five".