1042145 has 8 divisors (see below), whose sum is σ = 1346856. Its totient is φ = 769536.

The previous prime is 1042141. The next prime is 1042183. The reversal of 1042145 is 5412401.

It can be written as a sum of positive squares in 4 ways, for example, as 58081 + 984064 = 241^2 + 992^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1042145 - 2² = 1042141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042141) 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 7 ways as a sum of consecutive naturals, for example, 7952 + ... + 8081.

It is an arithmetic number, because the mean of its divisors is an integer number (168357).

2^1042145 is an apocalyptic number.

It is an amenable number.

1042145 is a deficient number, since it is larger than the sum of its proper divisors (304711).

1042145 is a wasteful number, since it uses less digits than its factorization.

1042145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16051.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1042145 is about 1020.8550337830. The cubic root of 1042145 is about 101.3855472582.

Adding to 1042145 its reverse (5412401), we get a palindrome (6454546).

The spelling of 1042145 in words is "one million, forty-two thousand, one hundred forty-five".