1117481 has 2 divisors, whose sum is σ = 1117482. Its totient is φ = 1117480.

The previous prime is 1117477. The next prime is 1117483. The reversal of 1117481 is 1847111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640000 + 477481 = 800^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117481 - 2² = 1117477 is a prime.

It is a super-2 number, since 2×1117481² = 2497527570722, which contains 22 as substring.

Together with 1117483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1117483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558740 + 558741.

It is an arithmetic number, because the mean of its divisors is an integer number (558741).

2^1117481 is an apocalyptic number.

It is an amenable number.

1117481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117481 is an equidigital number, since it uses as much as digits as its factorization.

1117481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224, while the sum is 23.

The square root of 1117481 is about 1057.1097388635. The cubic root of 1117481 is about 103.7719670909.

It can be divided in two parts, 11 and 17481, that multiplied together give a palindrome (192291).

The spelling of 1117481 in words is "one million, one hundred seventeen thousand, four hundred eighty-one".