1153541197 has 2 divisors, whose sum is σ = 1153541198. Its totient is φ = 1153541196.

The previous prime is 1153541117. The next prime is 1153541201. The reversal of 1153541197 is 7911453511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1149616836 + 3924361 = 33906^2 + 1981^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153541197 - 2²⁷ = 1019323469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153541107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576770598 + 576770599.

It is an arithmetic number, because the mean of its divisors is an integer number (576770599).

Almost surely, 2^1153541197 is an apocalyptic number.

It is an amenable number.

1153541197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153541197 is an equidigital number, since it uses as much as digits as its factorization.

1153541197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 37.

The square root of 1153541197 is about 33963.8218844700. The cubic root of 1153541197 is about 1048.7638353331.

The spelling of 1153541197 in words is "one billion, one hundred fifty-three million, five hundred forty-one thousand, one hundred ninety-seven".