64245319 has 8 divisors (see below), whose sum is σ = 65994768. Its totient is φ = 62504640.

The previous prime is 64245317. The next prime is 64245341. The reversal of 64245319 is 91354246.

It is a happy number.

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 64245319 - 2¹ = 64245317 is a prime.

It is a super-2 number, since 2×64245319² = 8254922026823522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64245317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14304 + ... + 18250.

It is an arithmetic number, because the mean of its divisors is an integer number (8249346).

Almost surely, 2^64245319 is an apocalyptic number.

64245319 is a deficient number, since it is larger than the sum of its proper divisors (1749449).

64245319 is a wasteful number, since it uses less digits than its factorization.

64245319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4385.

The product of its digits is 25920, while the sum is 34.

The square root of 64245319 is about 8015.3177728647. The cubic root of 64245319 is about 400.5104296269.

The spelling of 64245319 in words is "sixty-four million, two hundred forty-five thousand, three hundred nineteen".