1522601 has 2 divisors, whose sum is σ = 1522602. Its totient is φ = 1522600.

The previous prime is 1522589. The next prime is 1522607. The reversal of 1522601 is 1062251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952576 + 570025 = 976^2 + 755^2 .

It is an emirp because it is prime and its reverse (1062251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1522601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1522601.

It is not a weakly prime, because it can be changed into another prime (1522607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761300 + 761301.

It is an arithmetic number, because the mean of its divisors is an integer number (761301).

2^1522601 is an apocalyptic number.

It is an amenable number.

1522601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1522601 is an equidigital number, since it uses as much as digits as its factorization.

1522601 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 1522601 is about 1233.9371945119. The cubic root of 1522601 is about 115.0434870191.

Adding to 1522601 its reverse (1062251), we get a palindrome (2584852).

The spelling of 1522601 in words is "one million, five hundred twenty-two thousand, six hundred one".