139827213 has 18 divisors (see below), whose sum is σ = 213167214. Its totient is φ = 88309872.

The previous prime is 139827203. The next prime is 139827221. The reversal of 139827213 is 312728931.

It can be written as a sum of positive squares in only one way, i.e., 77053284 + 62773929 = 8778^2 + 7923^2 .

It is not a de Polignac number, because 139827213 - 2²⁰ = 138778637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139827203) 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 17 ways as a sum of consecutive naturals, for example, 18270 + ... + 24767.

It is an arithmetic number, because the mean of its divisors is an integer number (11842623).

Almost surely, 2^139827213 is an apocalyptic number.

It is an amenable number.

139827213 is a deficient number, since it is larger than the sum of its proper divisors (73340001).

139827213 is a wasteful number, since it uses less digits than its factorization.

139827213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43081 (or 43059 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 139827213 is about 11824.8557285068. The cubic root of 139827213 is about 519.0357042718.

The spelling of 139827213 in words is "one hundred thirty-nine million, eight hundred twenty-seven thousand, two hundred thirteen".