1163431469 has 2 divisors, whose sum is σ = 1163431470. Its totient is φ = 1163431468.

The previous prime is 1163431463. The next prime is 1163431531. The reversal of 1163431469 is 9641343611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 623101444 + 540330025 = 24962^2 + 23245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163431469 - 2¹² = 1163427373 is a prime.

It is a super-2 number, since 2×1163431469² = 2707145566118995922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163431463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581715734 + 581715735.

It is an arithmetic number, because the mean of its divisors is an integer number (581715735).

Almost surely, 2^1163431469 is an apocalyptic number.

It is an amenable number.

1163431469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163431469 is an equidigital number, since it uses as much as digits as its factorization.

1163431469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 1163431469 is about 34109.1112314584. Note that the first 3 decimals coincide. The cubic root of 1163431469 is about 1051.7526191516.

The spelling of 1163431469 in words is "one billion, one hundred sixty-three million, four hundred thirty-one thousand, four hundred sixty-nine".