1147421309 has 8 divisors (see below), whose sum is σ = 1208296320. Its totient is φ = 1087461936.

The previous prime is 1147421291. The next prime is 1147421311. The reversal of 1147421309 is 9031247411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1147421309 - 2⁸ = 1147421053 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 (1147421389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226337 + ... + 231350.

It is an arithmetic number, because the mean of its divisors is an integer number (151037040).

Almost surely, 2^1147421309 is an apocalyptic number.

It is an amenable number.

1147421309 is a deficient number, since it is larger than the sum of its proper divisors (60875011).

1147421309 is a wasteful number, since it uses less digits than its factorization.

1147421309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457819.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1147421309 is about 33873.6078533126. The cubic root of 1147421309 is about 1046.9058750576.

The spelling of 1147421309 in words is "one billion, one hundred forty-seven million, four hundred twenty-one thousand, three hundred nine".