1042547 has 4 divisors (see below), whose sum is σ = 1137336. Its totient is φ = 947760.

The previous prime is 1042529. The next prime is 1042571. The reversal of 1042547 is 7452401.

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

It is a de Polignac number, because none of the positive numbers 2^k-1042547 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1042577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47378 + ... + 47399.

It is an arithmetic number, because the mean of its divisors is an integer number (284334).

2^1042547 is an apocalyptic number.

1042547 is a deficient number, since it is larger than the sum of its proper divisors (94789).

1042547 is an equidigital number, since it uses as much as digits as its factorization.

1042547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94788.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 1042547 is about 1021.0519085727. The cubic root of 1042547 is about 101.3985818329.

Adding to 1042547 its reverse (7452401), we get a palindrome (8494948).

The spelling of 1042547 in words is "one million, forty-two thousand, five hundred forty-seven".