1609454564 has 24 divisors (see below), whose sum is σ = 2894965248. Its totient is φ = 782356320.

The previous prime is 1609454563. The next prime is 1609454629. The reversal of 1609454564 is 4654549061.

It is not an unprimeable number, because it can be changed into a prime (1609454563) 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, 223037 + ... + 230139.

It is an arithmetic number, because the mean of its divisors is an integer number (120623552).

Almost surely, 2^1609454564 is an apocalyptic number.

It is an amenable number.

1609454564 is a deficient number, since it is larger than the sum of its proper divisors (1285510684).

1609454564 is a wasteful number, since it uses less digits than its factorization.

1609454564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675 (or 8673 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 1609454564 is about 40118.0079764686. The cubic root of 1609454564 is about 1171.9063484440.

The spelling of 1609454564 in words is "one billion, six hundred nine million, four hundred fifty-four thousand, five hundred sixty-four".