1147690321 has 8 divisors (see below), whose sum is σ = 1182867840. Its totient is φ = 1112961168.

The previous prime is 1147690319. The next prime is 1147690337. The reversal of 1147690321 is 1230967411.

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 1147690321 - 2¹ = 1147690319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147690391) 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, 106891 + ... + 117136.

It is an arithmetic number, because the mean of its divisors is an integer number (147858480).

Almost surely, 2^1147690321 is an apocalyptic number.

It is an amenable number.

1147690321 is a deficient number, since it is larger than the sum of its proper divisors (35177519).

1147690321 is a wasteful number, since it uses less digits than its factorization.

1147690321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224183.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1147690321 is about 33877.5784406147. The cubic root of 1147690321 is about 1046.9876840771.

The spelling of 1147690321 in words is "one billion, one hundred forty-seven million, six hundred ninety thousand, three hundred twenty-one".