1117513 has 2 divisors, whose sum is σ = 1117514. Its totient is φ = 1117512.

The previous prime is 1117489. The next prime is 1117549. The reversal of 1117513 is 3157111.

1117513 = 747² + 748².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559504 + 558009 = 748^2 + 747^2 .

It is an emirp because it is prime and its reverse (3157111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1117513 - 2⁵ = 1117481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1117553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558756 + 558757.

It is an arithmetic number, because the mean of its divisors is an integer number (558757).

2^1117513 is an apocalyptic number.

1117513 is the 748-th centered square number.

It is an amenable number.

1117513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117513 is an equidigital number, since it uses as much as digits as its factorization.

1117513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105, while the sum is 19.

The square root of 1117513 is about 1057.1248743644. The cubic root of 1117513 is about 103.7729576138.

The spelling of 1117513 in words is "one million, one hundred seventeen thousand, five hundred thirteen".