1064191231 has 2 divisors, whose sum is σ = 1064191232. Its totient is φ = 1064191230.

The previous prime is 1064191229. The next prime is 1064191243. The reversal of 1064191231 is 1321914601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1064191231 - 2¹ = 1064191229 is a prime.

It is a super-2 number, since 2×1064191231² = 2265005952274590722, which contains 22 as substring.

Together with 1064191229, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1064191231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064191831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532095615 + 532095616.

It is an arithmetic number, because the mean of its divisors is an integer number (532095616).

Almost surely, 2^1064191231 is an apocalyptic number.

1064191231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064191231 is an equidigital number, since it uses as much as digits as its factorization.

1064191231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1064191231 is about 32621.9440101291. The cubic root of 1064191231 is about 1020.9549019306.

The spelling of 1064191231 in words is "one billion, sixty-four million, one hundred ninety-one thousand, two hundred thirty-one".