1152113461 has 4 divisors (see below), whose sum is σ = 1159012512. Its totient is φ = 1145214412.

The previous prime is 1152113449. The next prime is 1152113471. The reversal of 1152113461 is 1643112511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1643112511 = 25799 ⋅63689.

It is a cyclic number.

It is not a de Polignac number, because 1152113461 - 2¹¹ = 1152111413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152113471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3449275 + ... + 3449608.

It is an arithmetic number, because the mean of its divisors is an integer number (289753128).

Almost surely, 2^1152113461 is an apocalyptic number.

It is an amenable number.

1152113461 is a deficient number, since it is larger than the sum of its proper divisors (6899051).

1152113461 is an equidigital number, since it uses as much as digits as its factorization.

1152113461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899050.

The product of its digits is 720, while the sum is 25.

The square root of 1152113461 is about 33942.7968941865. The cubic root of 1152113461 is about 1048.3309722875.

Adding to 1152113461 its reverse (1643112511), we get a palindrome (2795225972).

The spelling of 1152113461 in words is "one billion, one hundred fifty-two million, one hundred thirteen thousand, four hundred sixty-one".