1230146452 has 24 divisors (see below), whose sum is σ = 2334989160. Its totient is φ = 564771840.

The previous prime is 1230146443. The next prime is 1230146453. The reversal of 1230146452 is 2546410321.

It can be written as a sum of positive squares in 4 ways, for example, as 4866436 + 1225280016 = 2206^2 + 35004^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1230146452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230146453) 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, 217827 + ... + 223402.

It is an arithmetic number, because the mean of its divisors is an integer number (97291215).

Almost surely, 2^1230146452 is an apocalyptic number.

It is an amenable number.

1230146452 is a deficient number, since it is larger than the sum of its proper divisors (1104842708).

1230146452 is a wasteful number, since it uses less digits than its factorization.

1230146452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441291 (or 441289 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1230146452 is about 35073.4436860711. The cubic root of 1230146452 is about 1071.4837923166.

Adding to 1230146452 its reverse (2546410321), we get a palindrome (3776556773).

The spelling of 1230146452 in words is "one billion, two hundred thirty million, one hundred forty-six thousand, four hundred fifty-two".