1230139748 has 12 divisors (see below), whose sum is σ = 2226977340. Its totient is φ = 593860512.

The previous prime is 1230139721. The next prime is 1230139759. The reversal of 1230139748 is 8479310321.

It can be written as a sum of positive squares in 2 ways, for example, as 483648064 + 746491684 = 21992^2 + 27322^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5302211 + ... + 5302442.

It is an arithmetic number, because the mean of its divisors is an integer number (185581445).

Almost surely, 2^1230139748 is an apocalyptic number.

It is an amenable number.

1230139748 is a deficient number, since it is larger than the sum of its proper divisors (996837592).

1230139748 is a wasteful number, since it uses less digits than its factorization.

1230139748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10604686 (or 10604684 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1230139748 is about 35073.3481150574. The cubic root of 1230139748 is about 1071.4818458708.

The spelling of 1230139748 in words is "one billion, two hundred thirty million, one hundred thirty-nine thousand, seven hundred forty-eight".