1244101005 has 32 divisors (see below), whose sum is σ = 2527699200. Its totient is φ = 568731456.

The previous prime is 1244101003. The next prime is 1244101009. The reversal of 1244101005 is 5001014421.

It is not a de Polignac number, because 1244101005 - 2¹ = 1244101003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244101003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 657310 + ... + 659199.

It is an arithmetic number, because the mean of its divisors is an integer number (78990600).

Almost surely, 2^1244101005 is an apocalyptic number.

1244101005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1244101005 is an abundant number, since it is smaller than the sum of its proper divisors (1283598195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244101005 is a wasteful number, since it uses less digits than its factorization.

1244101005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316530 (or 1316524 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1244101005 is about 35271.8160150566. The cubic root of 1244101005 is about 1075.5201391318.

Adding to 1244101005 its reverse (5001014421), we get a palindrome (6245115426).

The spelling of 1244101005 in words is "one billion, two hundred forty-four million, one hundred one thousand, five".