1252104105 has 96 divisors (see below), whose sum is σ = 2426941440. Its totient is φ = 549037440.

The previous prime is 1252104083. The next prime is 1252104109. The reversal of 1252104105 is 5014012521.

It is not a de Polignac number, because 1252104105 - 2¹² = 1252100009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1252104109) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4078362 + ... + 4078668.

It is an arithmetic number, because the mean of its divisors is an integer number (25280640).

Almost surely, 2^1252104105 is an apocalyptic number.

1252104105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1252104105 is a deficient number, since it is larger than the sum of its proper divisors (1174837335).

1252104105 is a wasteful number, since it uses less digits than its factorization.

1252104105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1252104105 is about 35385.0830859559. The cubic root of 1252104105 is about 1077.8214271025.

Adding to 1252104105 its reverse (5014012521), we get a palindrome (6266116626).

The spelling of 1252104105 in words is "one billion, two hundred fifty-two million, one hundred four thousand, one hundred five".