1232506651 has 4 divisors (see below), whose sum is σ = 1234696392. Its totient is φ = 1230316912.

The previous prime is 1232506643. The next prime is 1232506657. The reversal of 1232506651 is 1566052321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1232506651 - 2³ = 1232506643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232506657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094026 + ... + 1095151.

It is an arithmetic number, because the mean of its divisors is an integer number (308674098).

Almost surely, 2^1232506651 is an apocalyptic number.

1232506651 is a deficient number, since it is larger than the sum of its proper divisors (2189741).

1232506651 is an equidigital number, since it uses as much as digits as its factorization.

1232506651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189740.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1232506651 is about 35107.0740877106. The cubic root of 1232506651 is about 1072.1686157483.

Adding to 1232506651 its reverse (1566052321), we get a palindrome (2798558972).

The spelling of 1232506651 in words is "one billion, two hundred thirty-two million, five hundred six thousand, six hundred fifty-one".