64742101 has 8 divisors (see below), whose sum is σ = 68345600. Its totient is φ = 61328124.

The previous prime is 64742099. The next prime is 64742129. The reversal of 64742101 is 10124746.

It is not a de Polignac number, because 64742101 - 2¹ = 64742099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64742201) 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 in 7 ways as a sum of consecutive naturals, for example, 2140 + ... + 11578.

It is an arithmetic number, because the mean of its divisors is an integer number (8543200).

Almost surely, 2^64742101 is an apocalyptic number.

It is an amenable number.

64742101 is a deficient number, since it is larger than the sum of its proper divisors (3603499).

64742101 is an frugal number, since it uses more digits than its factorization.

64742101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9496 (or 9458 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 64742101 is about 8046.2476347674. The cubic root of 64742101 is about 401.5401063208.

Adding to 64742101 its reverse (10124746), we get a palindrome (74866847).

The spelling of 64742101 in words is "sixty-four million, seven hundred forty-two thousand, one hundred one".