64454105 has 4 divisors (see below), whose sum is σ = 77344932. Its totient is φ = 51563280.

The previous prime is 64454101. The next prime is 64454107. The reversal of 64454105 is 50145446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18905104 + 45549001 = 4348^2 + 6749^2 .

It is not a de Polignac number, because 64454105 - 2² = 64454101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64454101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6445406 + ... + 6445415.

It is an arithmetic number, because the mean of its divisors is an integer number (19336233).

Almost surely, 2^64454105 is an apocalyptic number.

It is an amenable number.

64454105 is a deficient number, since it is larger than the sum of its proper divisors (12890827).

64454105 is a wasteful number, since it uses less digits than its factorization.

64454105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12890826.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 64454105 is about 8028.3313957509. The cubic root of 64454105 is about 400.9438233256.

The spelling of 64454105 in words is "sixty-four million, four hundred fifty-four thousand, one hundred five".