1089864319 has 2 divisors, whose sum is σ = 1089864320. Its totient is φ = 1089864318.

The previous prime is 1089864253. The next prime is 1089864323. The reversal of 1089864319 is 9134689801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1089864319 - 2¹¹ = 1089862271 is a prime.

It is a super-2 number, since 2×1089864319² = 2375608467658667522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089864379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544932159 + 544932160.

It is an arithmetic number, because the mean of its divisors is an integer number (544932160).

Almost surely, 2^1089864319 is an apocalyptic number.

1089864319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089864319 is an equidigital number, since it uses as much as digits as its factorization.

1089864319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 1089864319 is about 33013.0931449932. The cubic root of 1089864319 is about 1029.0997629405.

The spelling of 1089864319 in words is "one billion, eighty-nine million, eight hundred sixty-four thousand, three hundred nineteen".