1152188461 has 4 divisors (see below), whose sum is σ = 1152925312. Its totient is φ = 1151451612.

The previous prime is 1152188459. The next prime is 1152188489. The reversal of 1152188461 is 1648812511.

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.

It is a cyclic number.

It is not a de Polignac number, because 1152188461 - 2¹ = 1152188459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1152188461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152188431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366075 + ... + 369208.

It is an arithmetic number, because the mean of its divisors is an integer number (288231328).

Almost surely, 2^1152188461 is an apocalyptic number.

It is an amenable number.

1152188461 is a deficient number, since it is larger than the sum of its proper divisors (736851).

1152188461 is an equidigital number, since it uses as much as digits as its factorization.

1152188461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736850.

The product of its digits is 15360, while the sum is 37.

The square root of 1152188461 is about 33943.9016761480. The cubic root of 1152188461 is about 1048.3537197915.

The spelling of 1152188461 in words is "one billion, one hundred fifty-two million, one hundred eighty-eight thousand, four hundred sixty-one".