1164212281 has 2 divisors, whose sum is σ = 1164212282. Its totient is φ = 1164212280.

The previous prime is 1164212263. The next prime is 1164212299. The reversal of 1164212281 is 1822124611.

It is a balanced prime because it is at equal distance from previous prime (1164212263) and next prime (1164212299).

It can be written as a sum of positive squares in only one way, i.e., 803212281 + 361000000 = 28341^2 + 19000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164212281 - 2¹¹ = 1164210233 is a prime.

It is a super-2 number, since 2×1164212281² = 2710780470462445922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1164212201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582106140 + 582106141.

It is an arithmetic number, because the mean of its divisors is an integer number (582106141).

Almost surely, 2^1164212281 is an apocalyptic number.

It is an amenable number.

1164212281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164212281 is an equidigital number, since it uses as much as digits as its factorization.

1164212281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 28.

The square root of 1164212281 is about 34120.5551097868. Note that the first 3 decimals coincide. The cubic root of 1164212281 is about 1051.9878535828.

Adding to 1164212281 its reverse (1822124611), we get a palindrome (2986336892).

The spelling of 1164212281 in words is "one billion, one hundred sixty-four million, two hundred twelve thousand, two hundred eighty-one".