12905057 has 8 divisors (see below), whose sum is σ = 14906592. Its totient is φ = 11041600.

The previous prime is 12905041. The next prime is 12905063. The reversal of 12905057 is 75050921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12905057 - 2⁴ = 12905041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12905077) 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 7 ways as a sum of consecutive naturals, for example, 34319 + ... + 34692.

It is an arithmetic number, because the mean of its divisors is an integer number (1863324).

Almost surely, 2^12905057 is an apocalyptic number.

12905057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12905057 is a deficient number, since it is larger than the sum of its proper divisors (2001535).

12905057 is a wasteful number, since it uses less digits than its factorization.

12905057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69039.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 12905057 is about 3592.3609228473. The cubic root of 12905057 is about 234.5596522199.

Adding to 12905057 its reverse (75050921), we get a palindrome (87955978).

The spelling of 12905057 in words is "twelve million, nine hundred five thousand, fifty-seven".