1113481 has 2 divisors, whose sum is σ = 1113482. Its totient is φ = 1113480.

The previous prime is 1113461. The next prime is 1113491. The reversal of 1113481 is 1843111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1032256 + 81225 = 1016^2 + 285^2 .

It is an emirp because it is prime and its reverse (1843111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1113481 - 2¹¹ = 1111433 is a prime.

It is a super-2 number, since 2×1113481² = 2479679874722, which contains 22 as substring.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1113401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556740 + 556741.

It is an arithmetic number, because the mean of its divisors is an integer number (556741).

2^1113481 is an apocalyptic number.

It is an amenable number.

1113481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113481 is an equidigital number, since it uses as much as digits as its factorization.

1113481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 19.

The square root of 1113481 is about 1055.2160916135. The cubic root of 1113481 is about 103.6480025309.

Adding to 1113481 its reverse (1843111), we get a palindrome (2956592).

The spelling of 1113481 in words is "one million, one hundred thirteen thousand, four hundred eighty-one".