1045901609 has 8 divisors (see below), whose sum is σ = 1092051072. Its totient is φ = 999808480.

The previous prime is 1045901603. The next prime is 1045901641. The reversal of 1045901609 is 9061095401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045901609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045901603) 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, 26372 + ... + 52794.

It is an arithmetic number, because the mean of its divisors is an integer number (136506384).

Almost surely, 2^1045901609 is an apocalyptic number.

It is an amenable number.

1045901609 is a deficient number, since it is larger than the sum of its proper divisors (46149463).

1045901609 is a wasteful number, since it uses less digits than its factorization.

1045901609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28167.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1045901609 is about 32340.4021156200. The cubic root of 1045901609 is about 1015.0722230957.

The spelling of 1045901609 in words is "one billion, forty-five million, nine hundred one thousand, six hundred nine".