1152271547 has 4 divisors (see below), whose sum is σ = 1316881776. Its totient is φ = 987661320.

The previous prime is 1152271537. The next prime is 1152271553. The reversal of 1152271547 is 7451722511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1152271547 - 2⁴ = 1152271531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1152271537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82305104 + ... + 82305117.

It is an arithmetic number, because the mean of its divisors is an integer number (329220444).

Almost surely, 2^1152271547 is an apocalyptic number.

1152271547 is a deficient number, since it is larger than the sum of its proper divisors (164610229).

1152271547 is an equidigital number, since it uses as much as digits as its factorization.

1152271547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164610228.

The product of its digits is 19600, while the sum is 35.

The square root of 1152271547 is about 33945.1255263550. The cubic root of 1152271547 is about 1048.3789186273.

The spelling of 1152271547 in words is "one billion, one hundred fifty-two million, two hundred seventy-one thousand, five hundred forty-seven".