1230543144 has 32 divisors (see below), whose sum is σ = 3418176000. Its totient is φ = 410180976.

The previous prime is 1230543137. The next prime is 1230543157. The reversal of 1230543144 is 4413450321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2848264 + ... + 2848695.

It is an arithmetic number, because the mean of its divisors is an integer number (106818000).

Almost surely, 2^1230543144 is an apocalyptic number.

It is an amenable number.

1230543144 is an abundant number, since it is smaller than the sum of its proper divisors (2187632856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230543144 is a wasteful number, since it uses less digits than its factorization.

1230543144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696974 (or 5696964 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1230543144 is about 35079.0983920625. The cubic root of 1230543144 is about 1071.5989556689.

Adding to 1230543144 its reverse (4413450321), we get a palindrome (5643993465).

The spelling of 1230543144 in words is "one billion, two hundred thirty million, five hundred forty-three thousand, one hundred forty-four".