1315601 has 6 divisors (see below), whose sum is σ = 1530450. Its totient is φ = 1127616.

The previous prime is 1315597. The next prime is 1315603. The reversal of 1315601 is 1065131.

It can be written as a sum of positive squares in only one way, i.e., 1002001 + 313600 = 1001^2 + 560^2 .

It is not a de Polignac number, because 1315601 - 2² = 1315597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1315601.

It is not an unprimeable number, because it can be changed into a prime (1315603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13376 + ... + 13473.

It is an arithmetic number, because the mean of its divisors is an integer number (255075).

2^1315601 is an apocalyptic number.

It is an amenable number.

1315601 is a deficient number, since it is larger than the sum of its proper divisors (214849).

1315601 is an equidigital number, since it uses as much as digits as its factorization.

1315601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26863 (or 26856 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1315601 is about 1146.9965126364. The cubic root of 1315601 is about 109.5741385427.

The spelling of 1315601 in words is "one million, three hundred fifteen thousand, six hundred one".