1002252047 has 4 divisors (see below), whose sum is σ = 1008635976. Its totient is φ = 995868120.

The previous prime is 1002252029. The next prime is 1002252059. The reversal of 1002252047 is 7402522001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1002252047 - 2¹⁰ = 1002251023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002252007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3191729 + ... + 3192042.

It is an arithmetic number, because the mean of its divisors is an integer number (252158994).

Almost surely, 2^1002252047 is an apocalyptic number.

1002252047 is a deficient number, since it is larger than the sum of its proper divisors (6383929).

1002252047 is an equidigital number, since it uses as much as digits as its factorization.

1002252047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383928.

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

The square root of 1002252047 is about 31658.3645660985. The cubic root of 1002252047 is about 1000.7501195134.

Adding to 1002252047 its reverse (7402522001), we get a palindrome (8404774048).

The spelling of 1002252047 in words is "one billion, two million, two hundred fifty-two thousand, forty-seven".