1045923609 has 16 divisors (see below), whose sum is σ = 1481690880. Its totient is φ = 654405840.

The previous prime is 1045923577. The next prime is 1045923673. The reversal of 1045923609 is 9063295401.

It is not a de Polignac number, because 1045923609 - 2⁵ = 1045923577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045923679) 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 15 ways as a sum of consecutive naturals, for example, 79647 + ... + 91844.

It is an arithmetic number, because the mean of its divisors is an integer number (92605680).

Almost surely, 2^1045923609 is an apocalyptic number.

1045923609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1045923609 is a deficient number, since it is larger than the sum of its proper divisors (435767271).

1045923609 is a wasteful number, since it uses less digits than its factorization.

1045923609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171620.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1045923609 is about 32340.7422456566. The cubic root of 1045923609 is about 1015.0793402191.

The spelling of 1045923609 in words is "one billion, forty-five million, nine hundred twenty-three thousand, six hundred nine".