64998151 has 2 divisors, whose sum is σ = 64998152. Its totient is φ = 64998150.

The previous prime is 64998091. The next prime is 64998173. The reversal of 64998151 is 15189946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64998151 - 2¹¹ = 64996103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64998098 and 64998107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64998181) 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, 32499075 + 32499076.

It is an arithmetic number, because the mean of its divisors is an integer number (32499076).

Almost surely, 2^64998151 is an apocalyptic number.

64998151 is the 3606-th centered decagonal number.

64998151 is a deficient number, since it is larger than the sum of its proper divisors (1).

64998151 is an equidigital number, since it uses as much as digits as its factorization.

64998151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 43.

The square root of 64998151 is about 8062.1430773709. The cubic root of 64998151 is about 402.0687633500.

The spelling of 64998151 in words is "sixty-four million, nine hundred ninety-eight thousand, one hundred fifty-one".