1155541051 has 16 divisors (see below), whose sum is σ = 1410692544. Its totient is φ = 923940864.

The previous prime is 1155541001. The next prime is 1155541073. The reversal of 1155541051 is 1501455511.

It is not a de Polignac number, because 1155541051 - 2¹⁵ = 1155508283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155541001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29520 + ... + 56413.

It is an arithmetic number, because the mean of its divisors is an integer number (88168284).

Almost surely, 2^1155541051 is an apocalyptic number.

1155541051 is a deficient number, since it is larger than the sum of its proper divisors (255151493).

1155541051 is a wasteful number, since it uses less digits than its factorization.

1155541051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86070.

The product of its (nonzero) digits is 2500, while the sum is 28.

The square root of 1155541051 is about 33993.2500799791. The cubic root of 1155541051 is about 1049.3695538153.

Adding to 1155541051 its reverse (1501455511), we get a palindrome (2656996562).

The spelling of 1155541051 in words is "one billion, one hundred fifty-five million, five hundred forty-one thousand, fifty-one".