1115297 has 2 divisors, whose sum is σ = 1115298. Its totient is φ = 1115296.

The previous prime is 1115273. The next prime is 1115299. The reversal of 1115297 is 7925111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 802816 + 312481 = 896^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115297 - 2¹⁰ = 1114273 is a prime.

Together with 1115299, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₈₆₈₄₀ and since 1115297 and 86840 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1115299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557648 + 557649.

It is an arithmetic number, because the mean of its divisors is an integer number (557649).

2^1115297 is an apocalyptic number.

It is an amenable number.

1115297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115297 is an equidigital number, since it uses as much as digits as its factorization.

1115297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630, while the sum is 26.

The square root of 1115297 is about 1056.0762283093. The cubic root of 1115297 is about 103.7043191747.

Subtracting from 1115297 its sum of digits (26), we obtain a triangular number (1115271 = T₁₄₉₃).

The spelling of 1115297 in words is "one million, one hundred fifteen thousand, two hundred ninety-seven".