1230275651 has 4 divisors (see below), whose sum is σ = 1342118904. Its totient is φ = 1118432400.

The previous prime is 1230275617. The next prime is 1230275653. The reversal of 1230275651 is 1565720321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1565720321 = 11 ⋅142338211.

It is a cyclic number.

It is not a de Polignac number, because 1230275651 - 2⁶ = 1230275587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230275653) 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, 55921610 + ... + 55921631.

It is an arithmetic number, because the mean of its divisors is an integer number (335529726).

Almost surely, 2^1230275651 is an apocalyptic number.

1230275651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1230275651 is a deficient number, since it is larger than the sum of its proper divisors (111843253).

1230275651 is a wasteful number, since it uses less digits than its factorization.

1230275651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111843252.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1230275651 is about 35075.2854728226. The cubic root of 1230275651 is about 1071.5213026982.

Adding to 1230275651 its reverse (1565720321), we get a palindrome (2795995972).

The spelling of 1230275651 in words is "one billion, two hundred thirty million, two hundred seventy-five thousand, six hundred fifty-one".