1245000345 has 8 divisors (see below), whose sum is σ = 1992000576. Its totient is φ = 664000176.

The previous prime is 1245000329. The next prime is 1245000349. The reversal of 1245000345 is 5430005421.

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

It is not a de Polignac number, because 1245000345 - 2⁴ = 1245000329 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1245000349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41499997 + ... + 41500026.

It is an arithmetic number, because the mean of its divisors is an integer number (249000072).

Almost surely, 2^1245000345 is an apocalyptic number.

1245000345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245000345 is a deficient number, since it is larger than the sum of its proper divisors (747000231).

1245000345 is an equidigital number, since it uses as much as digits as its factorization.

1245000345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83000031.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1245000345 is about 35284.5624175786. The cubic root of 1245000345 is about 1075.7792352716.

Adding to 1245000345 its reverse (5430005421), we get a palindrome (6675005766).

The spelling of 1245000345 in words is "one billion, two hundred forty-five million, three hundred forty-five", and thus it is an aban number.