12562001 has 2 divisors, whose sum is σ = 12562002. Its totient is φ = 12562000.

The previous prime is 12561973. The next prime is 12562009. The reversal of 12562001 is 10026521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 1002001 = 3400^2 + 1001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12562001 is a prime.

It is a super-4 number, since 4×12562001⁴ (a number of 29 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12562009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6281000 + 6281001.

It is an arithmetic number, because the mean of its divisors is an integer number (6281001).

Almost surely, 2^12562001 is an apocalyptic number.

It is an amenable number.

12562001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12562001 is an equidigital number, since it uses as much as digits as its factorization.

12562001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 12562001 is about 3544.2913254979. The cubic root of 12562001 is about 232.4625198766.

Adding to 12562001 its reverse (10026521), we get a palindrome (22588522).

It can be divided in two parts, 125 and 62001, that added together give a palindrome (62126).

The spelling of 12562001 in words is "twelve million, five hundred sixty-two thousand, one".