1147449307 has 4 divisors (see below), whose sum is σ = 1147517920. Its totient is φ = 1147380696.

The previous prime is 1147449301. The next prime is 1147449313. The reversal of 1147449307 is 7039447411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7039447411 = 461 ⋅15269951.

It is an interprime number because it is at equal distance from previous prime (1147449301) and next prime (1147449313).

It is a cyclic number.

It is not a de Polignac number, because 1147449307 - 2³ = 1147449299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1147449307.

It is not an unprimeable number, because it can be changed into a prime (1147449301) 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, 9013 + ... + 48745.

It is an arithmetic number, because the mean of its divisors is an integer number (286879480).

Almost surely, 2^1147449307 is an apocalyptic number.

1147449307 is a deficient number, since it is larger than the sum of its proper divisors (68613).

1147449307 is an equidigital number, since it uses as much as digits as its factorization.

1147449307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68612.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 1147449307 is about 33874.0211223882. The cubic root of 1147449307 is about 1046.9143901026.

The spelling of 1147449307 in words is "one billion, one hundred forty-seven million, four hundred forty-nine thousand, three hundred seven".