1245514005 has 12 divisors (see below), whose sum is σ = 2158891020. Its totient is φ = 664274112.

The previous prime is 1245514003. The next prime is 1245514037. The reversal of 1245514005 is 5004155421.

It can be written as a sum of positive squares in 2 ways, for example, as 665330436 + 580183569 = 25794^2 + 24087^2 .

It is not a de Polignac number, because 1245514005 - 2¹ = 1245514003 is a prime.

It is a super-2 number, since 2×1245514005² = 3102610273302280050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1245514005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245514003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13839000 + ... + 13839089.

It is an arithmetic number, because the mean of its divisors is an integer number (179907585).

Almost surely, 2^1245514005 is an apocalyptic number.

1245514005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245514005 is a deficient number, since it is larger than the sum of its proper divisors (913377015).

1245514005 is a wasteful number, since it uses less digits than its factorization.

1245514005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27678100 (or 27678097 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1245514005 is about 35291.8404875688. The cubic root of 1245514005 is about 1075.9271626161.

Adding to 1245514005 its reverse (5004155421), we get a palindrome (6249669426).

The spelling of 1245514005 in words is "one billion, two hundred forty-five million, five hundred fourteen thousand, five".