64818001 has 2 divisors, whose sum is σ = 64818002. Its totient is φ = 64818000.

The previous prime is 64817981. The next prime is 64818031. The reversal of 64818001 is 10081846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42915601 + 21902400 = 6551^2 + 4680^2 .

It is a cyclic number.

It is not a de Polignac number, because 64818001 - 2¹⁷ = 64686929 is a prime.

It is not a weakly prime, because it can be changed into another prime (64818031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32409000 + 32409001.

It is an arithmetic number, because the mean of its divisors is an integer number (32409001).

Almost surely, 2^64818001 is an apocalyptic number.

64818001 is the 3601-st centered decagonal number.

It is an amenable number.

64818001 is a deficient number, since it is larger than the sum of its proper divisors (1).

64818001 is an equidigital number, since it uses as much as digits as its factorization.

64818001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 64818001 is about 8050.9627374619. The cubic root of 64818001 is about 401.6969593915.

Adding to 64818001 its reverse (10081846), we get a palindrome (74899847).

The spelling of 64818001 in words is "sixty-four million, eight hundred eighteen thousand, one".