13139212 has 12 divisors (see below), whose sum is σ = 23029776. Its totient is φ = 6559280.

The previous prime is 13139171. The next prime is 13139213. The reversal of 13139212 is 21293131.

It is not an unprimeable number, because it can be changed into a prime (13139213) 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, 762 + ... + 5182.

It is an arithmetic number, because the mean of its divisors is an integer number (1919148).

Almost surely, 2^13139212 is an apocalyptic number.

It is an amenable number.

13139212 is a deficient number, since it is larger than the sum of its proper divisors (9890564).

13139212 is a wasteful number, since it uses less digits than its factorization.

13139212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168 (or 5166 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 13139212 is about 3624.8050982087. The cubic root of 13139212 is about 235.9698084522.

The spelling of 13139212 in words is "thirteen million, one hundred thirty-nine thousand, two hundred twelve".