1020182909 has 8 divisors (see below), whose sum is σ = 1057027320. Its totient is φ = 983449600.

The previous prime is 1020182899. The next prime is 1020182923. The reversal of 1020182909 is 9092810201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 129458884 + 890724025 = 11378^2 + 29845^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020182909 - 2²⁴ = 1003405693 is a prime.

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 (1020182959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8852 + ... + 46029.

It is an arithmetic number, because the mean of its divisors is an integer number (132128415).

Almost surely, 2^1020182909 is an apocalyptic number.

It is an amenable number.

1020182909 is a deficient number, since it is larger than the sum of its proper divisors (36844411).

1020182909 is an equidigital number, since it uses as much as digits as its factorization.

1020182909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55551.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1020182909 is about 31940.3022684507. The cubic root of 1020182909 is about 1006.6828760139.

The spelling of 1020182909 in words is "one billion, twenty million, one hundred eighty-two thousand, nine hundred nine".