1153253173 has 2 divisors, whose sum is σ = 1153253174. Its totient is φ = 1153253172.

The previous prime is 1153253149. The next prime is 1153253209. The reversal of 1153253173 is 3713523511.

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., 947531524 + 205721649 = 30782^2 + 14343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153253173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153253113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576626586 + 576626587.

It is an arithmetic number, because the mean of its divisors is an integer number (576626587).

Almost surely, 2^1153253173 is an apocalyptic number.

It is an amenable number.

1153253173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153253173 is an equidigital number, since it uses as much as digits as its factorization.

1153253173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 31.

The square root of 1153253173 is about 33959.5814609073. The cubic root of 1153253173 is about 1048.6765405750.

Adding to 1153253173 its reverse (3713523511), we get a palindrome (4866776684).

The spelling of 1153253173 in words is "one billion, one hundred fifty-three million, two hundred fifty-three thousand, one hundred seventy-three".