1009941169 has 4 divisors (see below), whose sum is σ = 1013587444. Its totient is φ = 1006294896.

The previous prime is 1009941167. The next prime is 1009941187. The reversal of 1009941169 is 9611499001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9611499001 = 13 ⋅739346077.

It can be written as a sum of positive squares in 2 ways, for example, as 288320400 + 721620769 = 16980^2 + 26863^2 .

It is a cyclic number.

It is not a de Polignac number, because 1009941169 - 2¹ = 1009941167 is a prime.

It is a super-2 number, since 2×1009941169² = 2039962329682173122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009941167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1822722 + ... + 1823275.

It is an arithmetic number, because the mean of its divisors is an integer number (253396861).

Almost surely, 2^1009941169 is an apocalyptic number.

It is an amenable number.

1009941169 is a deficient number, since it is larger than the sum of its proper divisors (3646275).

1009941169 is an equidigital number, since it uses as much as digits as its factorization.

1009941169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646274.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 1009941169 is about 31779.5715672820. The cubic root of 1009941169 is about 1003.3028024862.

The spelling of 1009941169 in words is "one billion, nine million, nine hundred forty-one thousand, one hundred sixty-nine".