1152228247 has 4 divisors (see below), whose sum is σ = 1152579976. Its totient is φ = 1151876520.

The previous prime is 1152228241. The next prime is 1152228251. The reversal of 1152228247 is 7428222511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7428222511 = 31 ⋅239620081.

It is a cyclic number.

It is not a de Polignac number, because 1152228247 - 2³ = 1152228239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152228241) 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, 170904 + ... + 177517.

It is an arithmetic number, because the mean of its divisors is an integer number (288144994).

Almost surely, 2^1152228247 is an apocalyptic number.

1152228247 is a deficient number, since it is larger than the sum of its proper divisors (351729).

1152228247 is an equidigital number, since it uses as much as digits as its factorization.

1152228247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351728.

The product of its digits is 17920, while the sum is 34.

The square root of 1152228247 is about 33944.4877262863. The cubic root of 1152228247 is about 1048.3657864868.

The spelling of 1152228247 in words is "one billion, one hundred fifty-two million, two hundred twenty-eight thousand, two hundred forty-seven".