1155741541 has 2 divisors, whose sum is σ = 1155741542. Its totient is φ = 1155741540.

The previous prime is 1155741539. The next prime is 1155741577. The reversal of 1155741541 is 1451475511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122920100 + 32821441 = 33510^2 + 5729^2 .

It is an emirp because it is prime and its reverse (1451475511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155741541 - 2¹ = 1155741539 is a prime.

Together with 1155741539, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1155741497 and 1155741506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155741241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577870770 + 577870771.

It is an arithmetic number, because the mean of its divisors is an integer number (577870771).

Almost surely, 2^1155741541 is an apocalyptic number.

It is an amenable number.

1155741541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155741541 is an equidigital number, since it uses as much as digits as its factorization.

1155741541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14000, while the sum is 34.

The square root of 1155741541 is about 33996.1989198793. The cubic root of 1155741541 is about 1049.4302399430.

The spelling of 1155741541 in words is "one billion, one hundred fifty-five million, seven hundred forty-one thousand, five hundred forty-one".