1000144245 has 16 divisors (see below), whose sum is σ = 1600623360. Its totient is φ = 533279424.

The previous prime is 1000144241. The next prime is 1000144247. The reversal of 1000144245 is 5424410001.

It is a happy number.

It is not a de Polignac number, because 1000144245 - 2² = 1000144241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000144241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111591 + ... + 120219.

It is an arithmetic number, because the mean of its divisors is an integer number (100038960).

Almost surely, 2^1000144245 is an apocalyptic number.

1000144245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1000144245 is a deficient number, since it is larger than the sum of its proper divisors (600479115).

1000144245 is an equidigital number, since it uses as much as digits as its factorization.

1000144245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16364.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1000144245 is about 31625.0572331498. The cubic root of 1000144245 is about 1000.0480793550.

Adding to 1000144245 its reverse (5424410001), we get a palindrome (6424554246).

The spelling of 1000144245 in words is "one billion, one hundred forty-four thousand, two hundred forty-five".