1213606153 has 2 divisors, whose sum is σ = 1213606154. Its totient is φ = 1213606152.

The previous prime is 1213606127. The next prime is 1213606187. The reversal of 1213606153 is 3516063121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1161650889 + 51955264 = 34083^2 + 7208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213606153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213606103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606803076 + 606803077.

It is an arithmetic number, because the mean of its divisors is an integer number (606803077).

Almost surely, 2^1213606153 is an apocalyptic number.

It is an amenable number.

1213606153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213606153 is an equidigital number, since it uses as much as digits as its factorization.

1213606153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1213606153 is about 34836.8505034540. The cubic root of 1213606153 is about 1066.6597887035.

Adding to 1213606153 its reverse (3516063121), we get a palindrome (4729669274).

The spelling of 1213606153 in words is "one billion, two hundred thirteen million, six hundred six thousand, one hundred fifty-three".