1155230412 has 48 divisors (see below), whose sum is σ = 3084060672. Its totient is φ = 329696640.

The previous prime is 1155230411. The next prime is 1155230423. The reversal of 1155230412 is 2140325511.

It is a happy number.

1155230412 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1155230411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72837 + ... + 87267.

It is an arithmetic number, because the mean of its divisors is an integer number (64251264).

Almost surely, 2^1155230412 is an apocalyptic number.

1155230412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155230412 is an abundant number, since it is smaller than the sum of its proper divisors (1928830260).

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

1155230412 is a wasteful number, since it uses less digits than its factorization.

1155230412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15398 (or 15396 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1155230412 is about 33988.6806451795. The cubic root of 1155230412 is about 1049.2755129262.

Adding to 1155230412 its reverse (2140325511), we get a palindrome (3295555923).

The spelling of 1155230412 in words is "one billion, one hundred fifty-five million, two hundred thirty thousand, four hundred twelve".