1230456839 has 8 divisors (see below), whose sum is σ = 1237312560. Its totient is φ = 1223611200.

The previous prime is 1230456827. The next prime is 1230456881. The reversal of 1230456839 is 9386540321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230456839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230456796 and 1230456805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230456439) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 502859 + ... + 505299.

It is an arithmetic number, because the mean of its divisors is an integer number (154664070).

Almost surely, 2^1230456839 is an apocalyptic number.

1230456839 is a deficient number, since it is larger than the sum of its proper divisors (6855721).

1230456839 is a wasteful number, since it uses less digits than its factorization.

1230456839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 1230456839 is about 35077.8682220000. The cubic root of 1230456839 is about 1071.5739026369.

The spelling of 1230456839 in words is "one billion, two hundred thirty million, four hundred fifty-six thousand, eight hundred thirty-nine".