1152532649 has 4 divisors (see below), whose sum is σ = 1152823440. Its totient is φ = 1152241860.

The previous prime is 1152532643. The next prime is 1152532657. The reversal of 1152532649 is 9462352511.

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 1152532649 - 2²⁰ = 1151484073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1152532643) 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, 139367 + ... + 147404.

It is an arithmetic number, because the mean of its divisors is an integer number (288205860).

Almost surely, 2^1152532649 is an apocalyptic number.

It is an amenable number.

1152532649 is a deficient number, since it is larger than the sum of its proper divisors (290791).

1152532649 is an equidigital number, since it uses as much as digits as its factorization.

1152532649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290790.

The product of its digits is 64800, while the sum is 38.

The square root of 1152532649 is about 33948.9712509820. The cubic root of 1152532649 is about 1048.4580993725.

The spelling of 1152532649 in words is "one billion, one hundred fifty-two million, five hundred thirty-two thousand, six hundred forty-nine".