139628163 has 4 divisors (see below), whose sum is σ = 186170888. Its totient is φ = 93085440.

The previous prime is 139628149. The next prime is 139628183. The reversal of 139628163 is 361826931.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 139628163 - 2⁹ = 139627651 is a prime.

It is a super-3 number, since 3×139628163³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139628113) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23271358 + ... + 23271363.

It is an arithmetic number, because the mean of its divisors is an integer number (46542722).

Almost surely, 2^139628163 is an apocalyptic number.

139628163 is a deficient number, since it is larger than the sum of its proper divisors (46542725).

139628163 is an equidigital number, since it uses as much as digits as its factorization.

139628163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46542724.

The product of its digits is 46656, while the sum is 39.

The square root of 139628163 is about 11816.4361378548. The cubic root of 139628163 is about 518.7892974923.

The spelling of 139628163 in words is "one hundred thirty-nine million, six hundred twenty-eight thousand, one hundred sixty-three".