1164220043 has 8 divisors (see below), whose sum is σ = 1330744800. Its totient is φ = 997747200.

The previous prime is 1164219997. The next prime is 1164220067. The reversal of 1164220043 is 3400224611.

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 1164220043 - 2¹⁴ = 1164203659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1164220643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73643 + ... + 88043.

It is an arithmetic number, because the mean of its divisors is an integer number (166343100).

Almost surely, 2^1164220043 is an apocalyptic number.

1164220043 is a deficient number, since it is larger than the sum of its proper divisors (166524757).

1164220043 is a wasteful number, since it uses less digits than its factorization.

1164220043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25957.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1164220043 is about 34120.6688533505. The cubic root of 1164220043 is about 1051.9901915045.

Adding to 1164220043 its reverse (3400224611), we get a palindrome (4564444654).

The spelling of 1164220043 in words is "one billion, one hundred sixty-four million, two hundred twenty thousand, forty-three".