1102612261 has 2 divisors, whose sum is σ = 1102612262. Its totient is φ = 1102612260.

The previous prime is 1102612241. The next prime is 1102612267. The reversal of 1102612261 is 1622162011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 596092225 + 506520036 = 24415^2 + 22506^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102612261 - 2⁹ = 1102611749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102612267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551306130 + 551306131.

It is an arithmetic number, because the mean of its divisors is an integer number (551306131).

Almost surely, 2^1102612261 is an apocalyptic number.

It is an amenable number.

1102612261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102612261 is an equidigital number, since it uses as much as digits as its factorization.

1102612261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1102612261 is about 33205.6058670821. The cubic root of 1102612261 is about 1033.0966164555.

Adding to 1102612261 its reverse (1622162011), we get a palindrome (2724774272).

The spelling of 1102612261 in words is "one billion, one hundred two million, six hundred twelve thousand, two hundred sixty-one".