1315081 has 2 divisors, whose sum is σ = 1315082. Its totient is φ = 1315080.

The previous prime is 1315073. The next prime is 1315087. The reversal of 1315081 is 1805131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1121481 + 193600 = 1059^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315081 - 2³ = 1315073 is a prime.

It is a super-2 number, since 2×1315081² = 3458876073122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1315087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657540 + 657541.

It is an arithmetic number, because the mean of its divisors is an integer number (657541).

2^1315081 is an apocalyptic number.

It is an amenable number.

1315081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315081 is an equidigital number, since it uses as much as digits as its factorization.

1315081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1315081 is about 1146.7698112525. The cubic root of 1315081 is about 109.5597000058.

It can be divided in two parts, 13150 and 81, that added together give a palindrome (13231).

The spelling of 1315081 in words is "one million, three hundred fifteen thousand, eighty-one".