1155348541 has 4 divisors (see below), whose sum is σ = 1155430300. Its totient is φ = 1155266784.

The previous prime is 1155348539. The next prime is 1155348559. The reversal of 1155348541 is 1458435511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 651525625 + 503822916 = 25525^2 + 22446^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155348541 - 2¹ = 1155348539 is a prime.

It is a deceptive number, since it divides R_1155348540.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155348541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155348511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13626 + ... + 49963.

It is an arithmetic number, because the mean of its divisors is an integer number (288857575).

Almost surely, 2^1155348541 is an apocalyptic number.

1155348541 is the 18169-th nonagonal number.

It is an amenable number.

1155348541 is a deficient number, since it is larger than the sum of its proper divisors (81759).

1155348541 is an equidigital number, since it uses as much as digits as its factorization.

1155348541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81758.

The product of its digits is 48000, while the sum is 37.

The square root of 1155348541 is about 33990.4183704761. The cubic root of 1155348541 is about 1049.3112765399.

The spelling of 1155348541 in words is "one billion, one hundred fifty-five million, three hundred forty-eight thousand, five hundred forty-one".