1013431169 has 2 divisors, whose sum is σ = 1013431170. Its totient is φ = 1013431168.

The previous prime is 1013431157. The next prime is 1013431229. The reversal of 1013431169 is 9611343101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 847974400 + 165456769 = 29120^2 + 12863^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013431169 is a prime.

It is a super-2 number, since 2×1013431169² = 2054085468601413122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1013431109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506715584 + 506715585.

It is an arithmetic number, because the mean of its divisors is an integer number (506715585).

Almost surely, 2^1013431169 is an apocalyptic number.

It is an amenable number.

1013431169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013431169 is an equidigital number, since it uses as much as digits as its factorization.

1013431169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1013431169 is about 31834.4337000048. The cubic root of 1013431169 is about 1004.4571605375.

The spelling of 1013431169 in words is "one billion, thirteen million, four hundred thirty-one thousand, one hundred sixty-nine".