1230736345 has 16 divisors (see below), whose sum is σ = 1491336720. Its totient is φ = 974997504.

The previous prime is 1230736327. The next prime is 1230736361. The reversal of 1230736345 is 5436370321.

It can be written as a sum of positive squares in 8 ways, for example, as 330076224 + 900660121 = 18168^2 + 30011^2 .

It is not a de Polignac number, because 1230736345 - 2⁹ = 1230735833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1230736345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243201 + ... + 248209.

It is an arithmetic number, because the mean of its divisors is an integer number (93208545).

Almost surely, 2^1230736345 is an apocalyptic number.

It is an amenable number.

1230736345 is a deficient number, since it is larger than the sum of its proper divisors (260600375).

1230736345 is a wasteful number, since it uses less digits than its factorization.

1230736345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 1230736345 is about 35081.8520748264. The cubic root of 1230736345 is about 1071.6550347417.

The spelling of 1230736345 in words is "one billion, two hundred thirty million, seven hundred thirty-six thousand, three hundred forty-five".