12139102 has 4 divisors (see below), whose sum is σ = 18208656. Its totient is φ = 6069550.

The previous prime is 12139051. The next prime is 12139103. The reversal of 12139102 is 20193121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12139102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12139103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3034774 + ... + 3034777.

It is an arithmetic number, because the mean of its divisors is an integer number (4552164).

Almost surely, 2^12139102 is an apocalyptic number.

12139102 is a deficient number, since it is larger than the sum of its proper divisors (6069554).

12139102 is an equidigital number, since it uses as much as digits as its factorization.

12139102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6069553.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12139102 is about 3484.1214100545. The cubic root of 12139102 is about 229.8240746700.

The spelling of 12139102 in words is "twelve million, one hundred thirty-nine thousand, one hundred two".