1155258741 has 48 divisors (see below), whose sum is σ = 1992012288. Its totient is φ = 589680000.

The previous prime is 1155258707. The next prime is 1155258757. The reversal of 1155258741 is 1478525511.

It is not a de Polignac number, because 1155258741 - 2⁹ = 1155258229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1155258741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155258701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49491 + ... + 68991.

It is an arithmetic number, because the mean of its divisors is an integer number (41500256).

Almost surely, 2^1155258741 is an apocalyptic number.

It is an amenable number.

1155258741 is a deficient number, since it is larger than the sum of its proper divisors (836753547).

1155258741 is a wasteful number, since it uses less digits than its factorization.

1155258741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19562 (or 19555 counting only the distinct ones).

The product of its digits is 56000, while the sum is 39.

The square root of 1155258741 is about 33989.0973843084. The cubic root of 1155258741 is about 1049.2840897673.

The spelling of 1155258741 in words is "one billion, one hundred fifty-five million, two hundred fifty-eight thousand, seven hundred forty-one".