1230512641 has 2 divisors, whose sum is σ = 1230512642. Its totient is φ = 1230512640.

The previous prime is 1230512603. The next prime is 1230512653. The reversal of 1230512641 is 1462150321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 836887041 + 393625600 = 28929^2 + 19840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230512641 - 2¹⁷ = 1230381569 is a prime.

It is a super-2 number, since 2×1230512641² = 3028322719321589762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1230512341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615256320 + 615256321.

It is an arithmetic number, because the mean of its divisors is an integer number (615256321).

Almost surely, 2^1230512641 is an apocalyptic number.

It is an amenable number.

1230512641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230512641 is an equidigital number, since it uses as much as digits as its factorization.

1230512641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1230512641 is about 35078.6636147958. The cubic root of 1230512641 is about 1071.5901012447.

Adding to 1230512641 its reverse (1462150321), we get a palindrome (2692662962).

The spelling of 1230512641 in words is "one billion, two hundred thirty million, five hundred twelve thousand, six hundred forty-one".