1009835545 has 4 divisors (see below), whose sum is σ = 1211802660. Its totient is φ = 807868432.

The previous prime is 1009835543. The next prime is 1009835551. The reversal of 1009835545 is 5455389001.

1009835545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5455389001 = 149 ⋅36613349.

It can be written as a sum of positive squares in 2 ways, for example, as 167210761 + 842624784 = 12931^2 + 29028^2 .

It is a cyclic number.

It is not a de Polignac number, because 1009835545 - 2¹ = 1009835543 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1009835498 and 1009835507.

It is not an unprimeable number, because it can be changed into a prime (1009835543) 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, 100983550 + ... + 100983559.

It is an arithmetic number, because the mean of its divisors is an integer number (302950665).

Almost surely, 2^1009835545 is an apocalyptic number.

It is an amenable number.

1009835545 is a deficient number, since it is larger than the sum of its proper divisors (201967115).

1009835545 is an equidigital number, since it uses as much as digits as its factorization.

1009835545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201967114.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 1009835545 is about 31777.9097015521. The cubic root of 1009835545 is about 1003.2678246898.

The spelling of 1009835545 in words is "one billion, nine million, eight hundred thirty-five thousand, five hundred forty-five".