1164212361 has 12 divisors (see below), whose sum is σ = 1810997188. Its totient is φ = 716438304.

The previous prime is 1164212351. The next prime is 1164212393. The reversal of 1164212361 is 1632124611.

It is a happy number.

1164212361 is a `hidden beast` number, since 1 + 1 + 6 + 421 + 236 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 521894025 + 642318336 = 22845^2 + 25344^2 .

It is not a de Polignac number, because 1164212361 - 2⁷ = 1164212233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1164212311) 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 11 ways as a sum of consecutive naturals, for example, 4975150 + ... + 4975383.

Almost surely, 2^1164212361 is an apocalyptic number.

It is an amenable number.

1164212361 is a deficient number, since it is larger than the sum of its proper divisors (646784827).

1164212361 is a wasteful number, since it uses less digits than its factorization.

1164212361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9950552 (or 9950549 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1164212361 is about 34120.5562821007. The cubic root of 1164212361 is about 1051.9878776789.

Adding to 1164212361 its reverse (1632124611), we get a palindrome (2796336972).

The spelling of 1164212361 in words is "one billion, one hundred sixty-four million, two hundred twelve thousand, three hundred sixty-one".