1155351541 has 2 divisors, whose sum is σ = 1155351542. Its totient is φ = 1155351540.

The previous prime is 1155351517. The next prime is 1155351553. The reversal of 1155351541 is 1451535511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 668222500 + 487129041 = 25850^2 + 22071^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155351541 - 2⁷ = 1155351413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155351581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577675770 + 577675771.

It is an arithmetic number, because the mean of its divisors is an integer number (577675771).

Almost surely, 2^1155351541 is an apocalyptic number.

It is an amenable number.

1155351541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155351541 is an equidigital number, since it uses as much as digits as its factorization.

1155351541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7500, while the sum is 31.

The square root of 1155351541 is about 33990.4625005309. The cubic root of 1155351541 is about 1049.3121847596.

The spelling of 1155351541 in words is "one billion, one hundred fifty-five million, three hundred fifty-one thousand, five hundred forty-one".