1212430564 has 12 divisors (see below), whose sum is σ = 2132863488. Its totient is φ = 603041000.

The previous prime is 1212430561. The next prime is 1212430567. The reversal of 1212430564 is 4650342121.

It is an interprime number because it is at equal distance from previous prime (1212430561) and next prime (1212430567).

It is not an unprimeable number, because it can be changed into a prime (1212430561) 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 3 ways as a sum of consecutive naturals, for example, 792712 + ... + 794239.

It is an arithmetic number, because the mean of its divisors is an integer number (177738624).

Almost surely, 2^1212430564 is an apocalyptic number.

It is an amenable number.

1212430564 is a deficient number, since it is larger than the sum of its proper divisors (920432924).

1212430564 is a wasteful number, since it uses less digits than its factorization.

1212430564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587146 (or 1587144 counting only the distinct ones).

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

The square root of 1212430564 is about 34819.9736358315. The cubic root of 1212430564 is about 1066.3152621534.

Adding to 1212430564 its reverse (4650342121), we get a palindrome (5862772685).

The spelling of 1212430564 in words is "one billion, two hundred twelve million, four hundred thirty thousand, five hundred sixty-four".