1230147643 has 8 divisors (see below), whose sum is σ = 1243097856. Its totient is φ = 1217217000.

The previous prime is 1230147619. The next prime is 1230147661. The reversal of 1230147643 is 3467410321.

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

It is a cyclic number.

It is not a de Polignac number, because 1230147643 - 2¹³ = 1230139451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230147683) 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, 145338 + ... + 153568.

It is an arithmetic number, because the mean of its divisors is an integer number (155387232).

Almost surely, 2^1230147643 is an apocalyptic number.

1230147643 is a deficient number, since it is larger than the sum of its proper divisors (12950213).

1230147643 is a wasteful number, since it uses less digits than its factorization.

1230147643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9785.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 1230147643 is about 35073.4606647248. The cubic root of 1230147643 is about 1071.4841381120.

Adding to 1230147643 its reverse (3467410321), we get a palindrome (4697557964).

The spelling of 1230147643 in words is "one billion, two hundred thirty million, one hundred forty-seven thousand, six hundred forty-three".