1002442145 has 8 divisors (see below), whose sum is σ = 1273691304. Its totient is φ = 754779904.

The previous prime is 1002442127. The next prime is 1002442201. The reversal of 1002442145 is 5412442001.

It can be written as a sum of positive squares in 4 ways, for example, as 152078224 + 850363921 = 12332^2 + 29161^2 .

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 1002442145 - 2²⁴ = 985664929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002442145.

It is an unprimeable number.

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, 5896634 + ... + 5896803.

It is an arithmetic number, because the mean of its divisors is an integer number (159211413).

Almost surely, 2^1002442145 is an apocalyptic number.

It is an amenable number.

1002442145 is a deficient number, since it is larger than the sum of its proper divisors (271249159).

1002442145 is a wasteful number, since it uses less digits than its factorization.

1002442145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11793459.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1002442145 is about 31661.3667582434. The cubic root of 1002442145 is about 1000.8133865563.

Adding to 1002442145 its reverse (5412442001), we get a palindrome (6414884146).

The spelling of 1002442145 in words is "one billion, two million, four hundred forty-two thousand, one hundred forty-five".