1045561473 has 32 divisors (see below), whose sum is σ = 1691665920. Its totient is φ = 632972880.

The previous prime is 1045561441. The next prime is 1045561511. The reversal of 1045561473 is 3741655401.

1045561473 is a `hidden beast` number, since 10 + 45 + 561 + 47 + 3 = 666.

It is not a de Polignac number, because 1045561473 - 2⁵ = 1045561441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045561403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 422586 + ... + 425052.

It is an arithmetic number, because the mean of its divisors is an integer number (52864560).

Almost surely, 2^1045561473 is an apocalyptic number.

It is an amenable number.

1045561473 is a deficient number, since it is larger than the sum of its proper divisors (646104447).

1045561473 is a wasteful number, since it uses less digits than its factorization.

1045561473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914 (or 3908 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1045561473 is about 32335.1430026218. The cubic root of 1045561473 is about 1014.9621744905.

The spelling of 1045561473 in words is "one billion, forty-five million, five hundred sixty-one thousand, four hundred seventy-three".