1045571547 has 4 divisors (see below), whose sum is σ = 1394095400. Its totient is φ = 697047696.

The previous prime is 1045571521. The next prime is 1045571581. The reversal of 1045571547 is 7451755401.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1045571547 - 2¹⁵ = 1045538779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1045571507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174261922 + ... + 174261927.

It is an arithmetic number, because the mean of its divisors is an integer number (348523850).

Almost surely, 2^1045571547 is an apocalyptic number.

1045571547 is a deficient number, since it is larger than the sum of its proper divisors (348523853).

1045571547 is an equidigital number, since it uses as much as digits as its factorization.

1045571547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348523852.

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 1045571547 is about 32335.2987770331. The cubic root of 1045571547 is about 1014.9654342051.

The spelling of 1045571547 in words is "one billion, forty-five million, five hundred seventy-one thousand, five hundred forty-seven".