1152661513 has 4 divisors (see below), whose sum is σ = 1154411280. Its totient is φ = 1150911748.

The previous prime is 1152661487. The next prime is 1152661519. The reversal of 1152661513 is 3151662511.

It is a happy number.

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 1152661513 - 2⁹ = 1152661001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152661519) 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, 873895 + ... + 875212.

It is an arithmetic number, because the mean of its divisors is an integer number (288602820).

Almost surely, 2^1152661513 is an apocalyptic number.

It is an amenable number.

1152661513 is a deficient number, since it is larger than the sum of its proper divisors (1749767).

1152661513 is an equidigital number, since it uses as much as digits as its factorization.

1152661513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749766.

The product of its digits is 5400, while the sum is 31.

The square root of 1152661513 is about 33950.8691052232. The cubic root of 1152661513 is about 1048.4971737448.

The spelling of 1152661513 in words is "one billion, one hundred fifty-two million, six hundred sixty-one thousand, five hundred thirteen".