651232441 has 4 divisors (see below), whose sum is σ = 651328384. Its totient is φ = 651136500.

The previous prime is 651232427. The next prime is 651232453. The reversal of 651232441 is 144232156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 651232441 - 2⁵ = 651232409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651232541) 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 3 ways as a sum of consecutive naturals, for example, 36945 + ... + 51646.

It is an arithmetic number, because the mean of its divisors is an integer number (162832096).

Almost surely, 2^651232441 is an apocalyptic number.

It is an amenable number.

651232441 is a deficient number, since it is larger than the sum of its proper divisors (95943).

651232441 is an equidigital number, since it uses as much as digits as its factorization.

651232441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95942.

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

The square root of 651232441 is about 25519.2562783479. The cubic root of 651232441 is about 866.7862410130.

Adding to 651232441 its reverse (144232156), we get a palindrome (795464597).

The spelling of 651232441 in words is "six hundred fifty-one million, two hundred thirty-two thousand, four hundred forty-one".