1162864641 has 4 divisors (see below), whose sum is σ = 1550486192. Its totient is φ = 775243092.

The previous prime is 1162864589. The next prime is 1162864643. The reversal of 1162864641 is 1464682611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1162864641 - 2⁷ = 1162864513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1162864641.

It is not an unprimeable number, because it can be changed into a prime (1162864643) 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 3 ways as a sum of consecutive naturals, for example, 193810771 + ... + 193810776.

It is an arithmetic number, because the mean of its divisors is an integer number (387621548).

Almost surely, 2^1162864641 is an apocalyptic number.

It is an amenable number.

1162864641 is a deficient number, since it is larger than the sum of its proper divisors (387621551).

1162864641 is an equidigital number, since it uses as much as digits as its factorization.

1162864641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387621550.

The product of its digits is 55296, while the sum is 39.

The square root of 1162864641 is about 34100.8011782715. The cubic root of 1162864641 is about 1051.5817855175.

The spelling of 1162864641 in words is "one billion, one hundred sixty-two million, eight hundred sixty-four thousand, six hundred forty-one".