651162643 has 2 divisors, whose sum is σ = 651162644. Its totient is φ = 651162642.

The previous prime is 651162583. The next prime is 651162653. The reversal of 651162643 is 346261156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 651162643 - 2¹⁷ = 651031571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 651162599 and 651162608.

It is not a weakly prime, because it can be changed into another prime (651162653) 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 as a sum of consecutive naturals, namely, 325581321 + 325581322.

It is an arithmetic number, because the mean of its divisors is an integer number (325581322).

Almost surely, 2^651162643 is an apocalyptic number.

651162643 is a deficient number, since it is larger than the sum of its proper divisors (1).

651162643 is an equidigital number, since it uses as much as digits as its factorization.

651162643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 651162643 is about 25517.8886861746. Note that the first 3 decimals coincide. The cubic root of 651162643 is about 866.7552730085.

The spelling of 651162643 in words is "six hundred fifty-one million, one hundred sixty-two thousand, six hundred forty-three".