1111553 has 2 divisors, whose sum is σ = 1111554. Its totient is φ = 1111552.

The previous prime is 1111547. The next prime is 1111559. The reversal of 1111553 is 3551111.

It is a balanced prime because it is at equal distance from previous prime (1111547) and next prime (1111559).

It can be written as a sum of positive squares in only one way, i.e., 559504 + 552049 = 748^2 + 743^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111553 - 2⁶ = 1111489 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1111559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555776 + 555777.

It is an arithmetic number, because the mean of its divisors is an integer number (555777).

2^1111553 is an apocalyptic number.

It is an amenable number.

1111553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111553 is an equidigital number, since it uses as much as digits as its factorization.

1111553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75, while the sum is 17.

The square root of 1111553 is about 1054.3021388577. The cubic root of 1111553 is about 103.5881455605.

Adding to 1111553 its reverse (3551111), we get a palindrome (4662664).

The spelling of 1111553 in words is "one million, one hundred eleven thousand, five hundred fifty-three".