12143070 has 24 divisors (see below), whose sum is σ = 31572216. Its totient is φ = 3238128.

The previous prime is 12143069. The next prime is 12143077. The reversal of 12143070 is 7034121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67372 + ... + 67551.

It is an arithmetic number, because the mean of its divisors is an integer number (1315509).

Almost surely, 2^12143070 is an apocalyptic number.

12143070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12143070 is an abundant number, since it is smaller than the sum of its proper divisors (19429146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12143070 is a wasteful number, since it uses less digits than its factorization.

12143070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134936 (or 134933 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 12143070 is about 3484.6908040743. The cubic root of 12143070 is about 229.8491133860.

Adding to 12143070 its reverse (7034121), we get a palindrome (19177191).

The spelling of 12143070 in words is "twelve million, one hundred forty-three thousand, seventy".