64261345 has 8 divisors (see below), whose sum is σ = 77319360. Its totient is φ = 51271920.

The previous prime is 64261331. The next prime is 64261367. The reversal of 64261345 is 54316246.

64261345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 64261345 - 2⁷ = 64261217 is a prime.

It is a super-2 number, since 2×64261345² = 8259040922418050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15061 + ... + 18850.

It is an arithmetic number, because the mean of its divisors is an integer number (9664920).

Almost surely, 2^64261345 is an apocalyptic number.

It is an amenable number.

64261345 is a deficient number, since it is larger than the sum of its proper divisors (13058015).

64261345 is a wasteful number, since it uses less digits than its factorization.

64261345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34295.

The product of its digits is 17280, while the sum is 31.

The square root of 64261345 is about 8016.3174213600. The cubic root of 64261345 is about 400.5437293112.

The spelling of 64261345 in words is "sixty-four million, two hundred sixty-one thousand, three hundred forty-five".