1005242245 has 16 divisors (see below), whose sum is σ = 1382008320. Its totient is φ = 687613824.

The previous prime is 1005242221. The next prime is 1005242263. The reversal of 1005242245 is 5422425001.

It is a cyclic number.

It is not a de Polignac number, because 1005242245 - 2¹⁵ = 1005209477 is a prime.

It is a super-2 number, since 2×1005242245² = 2021023942265280050, which contains 22 as substring.

It is a congruent number.

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, 20797 + ... + 49426.

It is an arithmetic number, because the mean of its divisors is an integer number (86375520).

Almost surely, 2^1005242245 is an apocalyptic number.

It is an amenable number.

1005242245 is a deficient number, since it is larger than the sum of its proper divisors (376766075).

1005242245 is an equidigital number, since it uses as much as digits as its factorization.

1005242245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70644.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1005242245 is about 31705.5554280319. Note that the first 3 decimals coincide. The cubic root of 1005242245 is about 1001.7443704026.

Adding to 1005242245 its reverse (5422425001), we get a palindrome (6427667246).

The spelling of 1005242245 in words is "one billion, five million, two hundred forty-two thousand, two hundred forty-five".