12901057 has 12 divisors (see below), whose sum is σ = 14668500. Its totient is φ = 11277792.

The previous prime is 12901043. The next prime is 12901081. The reversal of 12901057 is 75010921.

It can be written as a sum of positive squares in 2 ways, for example, as 1718721 + 11182336 = 1311^2 + 3344^2 .

It is not a de Polignac number, because 12901057 - 2²³ = 4512449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12901037) 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 11 ways as a sum of consecutive naturals, for example, 3319 + ... + 6067.

It is an arithmetic number, because the mean of its divisors is an integer number (1222375).

Almost surely, 2^12901057 is an apocalyptic number.

It is an amenable number.

12901057 is a deficient number, since it is larger than the sum of its proper divisors (1767443).

12901057 is a wasteful number, since it uses less digits than its factorization.

12901057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800 (or 2781 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 12901057 is about 3591.8041427673. The cubic root of 12901057 is about 234.5354153242.

Adding to 12901057 its reverse (75010921), we get a palindrome (87911978).

The spelling of 12901057 in words is "twelve million, nine hundred one thousand, fifty-seven".