64100641 has 8 divisors (see below), whose sum is σ = 70044768. Its totient is φ = 58176000.

The previous prime is 64100639. The next prime is 64100657. The reversal of 64100641 is 14600146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64100641 - 2¹ = 64100639 is a prime.

It is a super-2 number, since 2×64100641² = 8217784353221762, which contains 22 as substring.

It is a deceptive number, since it divides R_64100640.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64100741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2506 + ... + 11596.

It is an arithmetic number, because the mean of its divisors is an integer number (8755596).

Almost surely, 2^64100641 is an apocalyptic number.

It is an amenable number.

64100641 is a deficient number, since it is larger than the sum of its proper divisors (5944127).

64100641 is a wasteful number, since it uses less digits than its factorization.

64100641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 64100641 is about 8006.2875916370. The cubic root of 64100641 is about 400.2095589435.

Adding to 64100641 its reverse (14600146), we get a palindrome (78700787).

It can be divided in two parts, 64100 and 641, that multiplied together give a square (41088100 = 6410²).

The spelling of 64100641 in words is "sixty-four million, one hundred thousand, six hundred forty-one".