1155110461 has 8 divisors (see below), whose sum is σ = 1177581240. Its totient is φ = 1132664832.

The previous prime is 1155110459. The next prime is 1155110477. The reversal of 1155110461 is 1640115511.

It can be written as a sum of positive squares in 4 ways, for example, as 591997561 + 563112900 = 24331^2 + 23730^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1155110461 - 2¹ = 1155110459 is a prime.

It is a super-2 number, since 2×1155110461² = 2668560354223265042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155113461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105501 + ... + 115933.

It is an arithmetic number, because the mean of its divisors is an integer number (147197655).

Almost surely, 2^1155110461 is an apocalyptic number.

It is an amenable number.

1155110461 is a deficient number, since it is larger than the sum of its proper divisors (22470779).

1155110461 is a wasteful number, since it uses less digits than its factorization.

1155110461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12575.

The product of its (nonzero) digits is 600, while the sum is 25.

The square root of 1155110461 is about 33986.9160266124. The cubic root of 1155110461 is about 1049.2391952063.

Adding to 1155110461 its reverse (1640115511), we get a palindrome (2795225972).

The spelling of 1155110461 in words is "one billion, one hundred fifty-five million, one hundred ten thousand, four hundred sixty-one".