1042545 has 16 divisors (see below), whose sum is σ = 1906560. Its totient is φ = 476544.

The previous prime is 1042529. The next prime is 1042571. The reversal of 1042545 is 5452401.

It is not a de Polignac number, because 1042545 - 2⁴ = 1042529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4860 + ... + 5069.

It is an arithmetic number, because the mean of its divisors is an integer number (119160).

2^1042545 is an apocalyptic number.

1042545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042545 is a deficient number, since it is larger than the sum of its proper divisors (864015).

1042545 is an equidigital number, since it uses as much as digits as its factorization.

1042545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9944.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1042545 is about 1021.0509291901. The cubic root of 1042545 is about 101.3985169926.

Adding to 1042545 its reverse (5452401), we get a palindrome (6494946).

The spelling of 1042545 in words is "one million, forty-two thousand, five hundred forty-five".