1172361653 has 2 divisors, whose sum is σ = 1172361654. Its totient is φ = 1172361652.

The previous prime is 1172361583. The next prime is 1172361679. The reversal of 1172361653 is 3561632711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722158129 + 450203524 = 26873^2 + 21218^2 .

It is a cyclic number.

It is not a de Polignac number, because 1172361653 - 2¹⁴ = 1172345269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1172366653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586180826 + 586180827.

It is an arithmetic number, because the mean of its divisors is an integer number (586180827).

Almost surely, 2^1172361653 is an apocalyptic number.

It is an amenable number.

1172361653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172361653 is an equidigital number, since it uses as much as digits as its factorization.

1172361653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 1172361653 is about 34239.7671282969. The cubic root of 1172361653 is about 1054.4367524207.

The spelling of 1172361653 in words is "one billion, one hundred seventy-two million, three hundred sixty-one thousand, six hundred fifty-three".