1152711409 has 4 divisors (see below), whose sum is σ = 1189895680. Its totient is φ = 1115527140.

The previous prime is 1152711403. The next prime is 1152711421. The reversal of 1152711409 is 9041172511.

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 1152711409 - 2⁵ = 1152711377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 37184239 = 1152711409 / (1 + 1 + 5 + 2 + 7 + 1 + 1 + 4 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152711403) 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, 18592089 + ... + 18592150.

It is an arithmetic number, because the mean of its divisors is an integer number (297473920).

Almost surely, 2^1152711409 is an apocalyptic number.

It is an amenable number.

1152711409 is a deficient number, since it is larger than the sum of its proper divisors (37184271).

1152711409 is an equidigital number, since it uses as much as digits as its factorization.

1152711409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37184270.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 1152711409 is about 33951.6039238207. The cubic root of 1152711409 is about 1048.5123025169.

The spelling of 1152711409 in words is "one billion, one hundred fifty-two million, seven hundred eleven thousand, four hundred nine".