1118481 has 32 divisors (see below), whose sum is σ = 1951488. Its totient is φ = 552960.

The previous prime is 1118479. The next prime is 1118483. The reversal of 1118481 is 1848111.

1118481 is nontrivially palindromic in base 2, base 4 and base 16.

1118481 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (1118479) and next prime (1118483).

It is not a de Polignac number, because 1118481 - 2¹ = 1118479 is a prime.

It is a super-2 number, since 2×1118481² = 2501999494722, which contains 22 as substring.

1118481 is an undulating number in base 4.

1118481 is a nontrivial repdigit in base 16.

It is a plaindrome in base 16.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118483) by changing a digit.

It is a nontrivial repunit in base 16.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4521 + ... + 4761.

It is an arithmetic number, because the mean of its divisors is an integer number (60984).

2^1118481 is an apocalyptic number.

It is an amenable number.

1118481 is a deficient number, since it is larger than the sum of its proper divisors (833007).

1118481 is a wasteful number, since it uses less digits than its factorization.

1118481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281.

The product of its digits is 256, while the sum is 24.

The square root of 1118481 is about 1057.5826208860. The cubic root of 1118481 is about 103.8029119954.

The spelling of 1118481 in words is "one million, one hundred eighteen thousand, four hundred eighty-one".