1002022045 has 8 divisors (see below), whose sum is σ = 1205457624. Its totient is φ = 799596864.

The previous prime is 1002022027. The next prime is 1002022103. The reversal of 1002022045 is 5402202001.

It can be written as a sum of positive squares in 4 ways, for example, as 452072644 + 549949401 = 21262^2 + 23451^2 .

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 1002022045 - 2¹³ = 1002013853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250414 + ... + 254383.

It is an arithmetic number, because the mean of its divisors is an integer number (150682203).

Almost surely, 2^1002022045 is an apocalyptic number.

It is an amenable number.

1002022045 is a deficient number, since it is larger than the sum of its proper divisors (203435579).

1002022045 is an equidigital number, since it uses as much as digits as its factorization.

1002022045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505199.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1002022045 is about 31654.7317947886. The cubic root of 1002022045 is about 1000.6735612134.

Adding to 1002022045 its reverse (5402202001), we get a palindrome (6404224046).

The spelling of 1002022045 in words is "one billion, two million, twenty-two thousand, forty-five".