12870051 has 4 divisors (see below), whose sum is σ = 17160072. Its totient is φ = 8580032.

The previous prime is 12870047. The next prime is 12870079. The reversal of 12870051 is 15007821.

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

It is a cyclic number.

It is not a de Polignac number, because 12870051 - 2² = 12870047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12870001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2145006 + ... + 2145011.

It is an arithmetic number, because the mean of its divisors is an integer number (4290018).

Almost surely, 2^12870051 is an apocalyptic number.

12870051 is a deficient number, since it is larger than the sum of its proper divisors (4290021).

12870051 is an equidigital number, since it uses as much as digits as its factorization.

12870051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290020.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 12870051 is about 3587.4853309805. The cubic root of 12870051 is about 234.3473728858.

Adding to 12870051 its reverse (15007821), we get a palindrome (27877872).

The spelling of 12870051 in words is "twelve million, eight hundred seventy thousand, fifty-one".