1153205497 has 2 divisors, whose sum is σ = 1153205498. Its totient is φ = 1153205496.

The previous prime is 1153205477. The next prime is 1153205507. The reversal of 1153205497 is 7945023511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891380736 + 261824761 = 29856^2 + 16181^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153205497 - 2⁷ = 1153205369 is a prime.

It is a super-2 number, since 2×1153205497² = 2659765836622034018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1153205477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576602748 + 576602749.

It is an arithmetic number, because the mean of its divisors is an integer number (576602749).

Almost surely, 2^1153205497 is an apocalyptic number.

It is an amenable number.

1153205497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153205497 is an equidigital number, since it uses as much as digits as its factorization.

1153205497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 1153205497 is about 33958.8795015383. The cubic root of 1153205497 is about 1048.6620894574.

The spelling of 1153205497 in words is "one billion, one hundred fifty-three million, two hundred five thousand, four hundred ninety-seven".