64280245 has 8 divisors (see below), whose sum is σ = 77460480. Its totient is φ = 51208080.

The previous prime is 64280233. The next prime is 64280257. The reversal of 64280245 is 54208246.

It is an interprime number because it is at equal distance from previous prime (64280233) and next prime (64280257).

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

It is a de Polignac number, because none of the positive numbers 2^k-64280245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25701 + ... + 28090.

It is an arithmetic number, because the mean of its divisors is an integer number (9682560).

Almost surely, 2^64280245 is an apocalyptic number.

It is an amenable number.

64280245 is a deficient number, since it is larger than the sum of its proper divisors (13180235).

64280245 is a wasteful number, since it uses less digits than its factorization.

64280245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54035.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 64280245 is about 8017.4961802298. The cubic root of 64280245 is about 400.5829936332.

The spelling of 64280245 in words is "sixty-four million, two hundred eighty thousand, two hundred forty-five".