1155113141 has 24 divisors (see below), whose sum is σ = 1453014144. Its totient is φ = 898896960.

The previous prime is 1155113137. The next prime is 1155113143. The reversal of 1155113141 is 1413115511.

It is not a de Polignac number, because 1155113141 - 2² = 1155113137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155113143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64160 + ... + 80166.

It is an arithmetic number, because the mean of its divisors is an integer number (60542256).

Almost surely, 2^1155113141 is an apocalyptic number.

It is an amenable number.

1155113141 is a deficient number, since it is larger than the sum of its proper divisors (297901003).

1155113141 is a wasteful number, since it uses less digits than its factorization.

1155113141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16101 (or 16088 counting only the distinct ones).

The product of its digits is 300, while the sum is 23.

The square root of 1155113141 is about 33986.9554535266. The cubic root of 1155113141 is about 1049.2400066609.

Adding to 1155113141 its reverse (1413115511), we get a palindrome (2568228652).

The spelling of 1155113141 in words is "one billion, one hundred fifty-five million, one hundred thirteen thousand, one hundred forty-one".