651094651 has 2 divisors, whose sum is σ = 651094652. Its totient is φ = 651094650.

The previous prime is 651094627. The next prime is 651094667. The reversal of 651094651 is 156490156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 651094651 - 2⁹ = 651094139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 651094651.

It is not a weakly prime, because it can be changed into another prime (651094601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325547325 + 325547326.

It is an arithmetic number, because the mean of its divisors is an integer number (325547326).

Almost surely, 2^651094651 is an apocalyptic number.

651094651 is a deficient number, since it is larger than the sum of its proper divisors (1).

651094651 is an equidigital number, since it uses as much as digits as its factorization.

651094651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 651094651 is about 25516.5564095158. The cubic root of 651094651 is about 866.7251041628.

The spelling of 651094651 in words is "six hundred fifty-one million, ninety-four thousand, six hundred fifty-one".