1045642605 has 48 divisors (see below), whose sum is σ = 1987649280. Its totient is φ = 467822208.

The previous prime is 1045642547. The next prime is 1045642649. The reversal of 1045642605 is 5062465401.

It is not a de Polignac number, because 1045642605 - 2⁸ = 1045642349 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19411 + ... + 49679.

It is an arithmetic number, because the mean of its divisors is an integer number (41409360).

Almost surely, 2^1045642605 is an apocalyptic number.

1045642605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1045642605 is a deficient number, since it is larger than the sum of its proper divisors (942006675).

1045642605 is a wasteful number, since it uses less digits than its factorization.

1045642605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30338 (or 30331 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1045642605 is about 32336.3975266262. The cubic root of 1045642605 is about 1014.9884263444.

The spelling of 1045642605 in words is "one billion, forty-five million, six hundred forty-two thousand, six hundred five".