1011709469 has 4 divisors (see below), whose sum is σ = 1014608700. Its totient is φ = 1008810240.

The previous prime is 1011709429. The next prime is 1011709499. The reversal of 1011709469 is 9649071101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 548168569 + 463540900 = 23413^2 + 21530^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011709469 - 2²⁸ = 743274013 is a prime.

It is a super-2 number, since 2×1011709469² = 2047112099328523922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011709429) 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 in 3 ways as a sum of consecutive naturals, for example, 1449092 + ... + 1449789.

It is an arithmetic number, because the mean of its divisors is an integer number (253652175).

Almost surely, 2^1011709469 is an apocalyptic number.

It is an amenable number.

1011709469 is a deficient number, since it is larger than the sum of its proper divisors (2899231).

1011709469 is an equidigital number, since it uses as much as digits as its factorization.

1011709469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899230.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 1011709469 is about 31807.3807315220. The cubic root of 1011709469 is about 1003.8880200421. Note that the first 3 decimals are identical.

The spelling of 1011709469 in words is "one billion, eleven million, seven hundred nine thousand, four hundred sixty-nine".