8251651 has 2 divisors, whose sum is σ = 8251652. Its totient is φ = 8251650.

The previous prime is 8251603. The next prime is 8251667. The reversal of 8251651 is 1561528.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8251651 is a prime.

8251651 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8251601) 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 as a sum of consecutive naturals, namely, 4125825 + 4125826.

It is an arithmetic number, because the mean of its divisors is an integer number (4125826).

Almost surely, 2^8251651 is an apocalyptic number.

8251651 is a deficient number, since it is larger than the sum of its proper divisors (1).

8251651 is an equidigital number, since it uses as much as digits as its factorization.

8251651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 28.

The square root of 8251651 is about 2872.5687111016. The cubic root of 8251651 is about 202.0754790963.

It can be divided in two parts, 825 and 1651, that multiplied together give a triangular number (1362075 = T₁₆₅₀).

The spelling of 8251651 in words is "eight million, two hundred fifty-one thousand, six hundred fifty-one".