1361226653 has 2 divisors, whose sum is σ = 1361226654. Its totient is φ = 1361226652.

The previous prime is 1361226637. The next prime is 1361226661. The reversal of 1361226653 is 3566221631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1171145284 + 190081369 = 34222^2 + 13787^2 .

It is a cyclic number.

It is not a de Polignac number, because 1361226653 - 2⁴ = 1361226637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361226683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680613326 + 680613327.

It is an arithmetic number, because the mean of its divisors is an integer number (680613327).

Almost surely, 2^1361226653 is an apocalyptic number.

It is an amenable number.

1361226653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361226653 is an equidigital number, since it uses as much as digits as its factorization.

1361226653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 1361226653 is about 36894.8052305470. The cubic root of 1361226653 is about 1108.2646511770.

The spelling of 1361226653 in words is "one billion, three hundred sixty-one million, two hundred twenty-six thousand, six hundred fifty-three".