1113532261 has 2 divisors, whose sum is σ = 1113532262. Its totient is φ = 1113532260.

The previous prime is 1113532253. The next prime is 1113532333. The reversal of 1113532261 is 1622353111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 969388225 + 144144036 = 31135^2 + 12006^2 .

It is an emirp because it is prime and its reverse (1622353111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1113532261 - 2³ = 1113532253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113532241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556766130 + 556766131.

It is an arithmetic number, because the mean of its divisors is an integer number (556766131).

Almost surely, 2^1113532261 is an apocalyptic number.

It is an amenable number.

1113532261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113532261 is an equidigital number, since it uses as much as digits as its factorization.

1113532261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 1113532261 is about 33369.6308190546. The cubic root of 1113532261 is about 1036.4959304407.

Adding to 1113532261 its reverse (1622353111), we get a palindrome (2735885372).

The spelling of 1113532261 in words is "one billion, one hundred thirteen million, five hundred thirty-two thousand, two hundred sixty-one".