1230145344 has 42 divisors (see below), whose sum is σ = 3525991170. Its totient is φ = 410048256.

The previous prime is 1230145307. The next prime is 1230145349. The reversal of 1230145344 is 4435410321.

It is a happy number.

1230145344 is a `hidden beast` number, since 12 + 301 + 4 + 5 + 344 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1029639744 + 200505600 = 32088^2 + 14160^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230145349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1067259 + ... + 1068410.

Almost surely, 2^1230145344 is an apocalyptic number.

It is an amenable number.

1230145344 is an abundant number, since it is smaller than the sum of its proper divisors (2295845826).

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

1230145344 is a wasteful number, since it uses less digits than its factorization.

1230145344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135687 (or 2135674 counting only the distinct ones).

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

The square root of 1230145344 is about 35073.4278906411. The cubic root of 1230145344 is about 1071.4834706193.

Adding to 1230145344 its reverse (4435410321), we get a palindrome (5665555665).

The spelling of 1230145344 in words is "one billion, two hundred thirty million, one hundred forty-five thousand, three hundred forty-four".