1155876461 has 16 divisors (see below), whose sum is σ = 1274538240. Its totient is φ = 1043347200.

The previous prime is 1155876451. The next prime is 1155876479. The reversal of 1155876461 is 1646785511.

It is a cyclic number.

It is not a de Polignac number, because 1155876461 - 2¹⁰ = 1155875437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155876451) 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, 66680 + ... + 82206.

It is an arithmetic number, because the mean of its divisors is an integer number (79658640).

Almost surely, 2^1155876461 is an apocalyptic number.

It is an amenable number.

1155876461 is a deficient number, since it is larger than the sum of its proper divisors (118661779).

1155876461 is a wasteful number, since it uses less digits than its factorization.

1155876461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15724.

The product of its digits is 201600, while the sum is 44.

The square root of 1155876461 is about 33998.1832014595. The cubic root of 1155876461 is about 1049.4710747991.

The spelling of 1155876461 in words is "one billion, one hundred fifty-five million, eight hundred seventy-six thousand, four hundred sixty-one".