1162028321 has 2 divisors, whose sum is σ = 1162028322. Its totient is φ = 1162028320.

The previous prime is 1162028317. The next prime is 1162028363. The reversal of 1162028321 is 1238202611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 821109025 + 340919296 = 28655^2 + 18464^2 .

It is an emirp because it is prime and its reverse (1238202611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1162028321 - 2² = 1162028317 is a prime.

It is not a weakly prime, because it can be changed into another prime (1162028311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581014160 + 581014161.

It is an arithmetic number, because the mean of its divisors is an integer number (581014161).

Almost surely, 2^1162028321 is an apocalyptic number.

It is an amenable number.

1162028321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162028321 is an equidigital number, since it uses as much as digits as its factorization.

1162028321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1162028321 is about 34088.5365042268. The cubic root of 1162028321 is about 1051.3296295444.

The spelling of 1162028321 in words is "one billion, one hundred sixty-two million, twenty-eight thousand, three hundred twenty-one".