651120441 has 16 divisors (see below), whose sum is σ = 901004160. Its totient is φ = 417755520.

The previous prime is 651120439. The next prime is 651120473. The reversal of 651120441 is 144021156.

It is a happy number.

It is not a de Polignac number, because 651120441 - 2¹ = 651120439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (651120241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15276 + ... + 39186.

It is an arithmetic number, because the mean of its divisors is an integer number (56312760).

Almost surely, 2^651120441 is an apocalyptic number.

It is an amenable number.

651120441 is a deficient number, since it is larger than the sum of its proper divisors (249883719).

651120441 is a wasteful number, since it uses less digits than its factorization.

651120441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24256.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 651120441 is about 25517.0617626717. The cubic root of 651120441 is about 866.7365477347.

Adding to 651120441 its reverse (144021156), we get a palindrome (795141597).

The spelling of 651120441 in words is "six hundred fifty-one million, one hundred twenty thousand, four hundred forty-one".