1245253105 has 8 divisors (see below), whose sum is σ = 1542507264. Its totient is φ = 964066800.

The previous prime is 1245253099. The next prime is 1245253123. The reversal of 1245253105 is 5013525421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1245253105 - 2²⁹ = 708382193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4016791 + ... + 4017100.

It is an arithmetic number, because the mean of its divisors is an integer number (192813408).

Almost surely, 2^1245253105 is an apocalyptic number.

It is an amenable number.

1245253105 is a deficient number, since it is larger than the sum of its proper divisors (297254159).

1245253105 is an equidigital number, since it uses as much as digits as its factorization.

1245253105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8033927.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1245253105 is about 35288.1439721615. The cubic root of 1245253105 is about 1075.8520319209.

Adding to 1245253105 its reverse (5013525421), we get a palindrome (6258778526).

The spelling of 1245253105 in words is "one billion, two hundred forty-five million, two hundred fifty-three thousand, one hundred five".