64290245 has 12 divisors (see below), whose sum is σ = 79905540. Its totient is φ = 49655424.

The previous prime is 64290241. The next prime is 64290251. The reversal of 64290245 is 54209246.

It can be written as a sum of positive squares in 6 ways, for example, as 17956 + 64272289 = 134^2 + 8017^2 .

It is not a de Polignac number, because 64290245 - 2² = 64290241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64290241) 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 11 ways as a sum of consecutive naturals, for example, 3440 + ... + 11849.

It is an arithmetic number, because the mean of its divisors is an integer number (6658795).

Almost surely, 2^64290245 is an apocalyptic number.

It is an amenable number.

64290245 is a deficient number, since it is larger than the sum of its proper divisors (15615295).

64290245 is a wasteful number, since it uses less digits than its factorization.

64290245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15352 (or 15323 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 64290245 is about 8018.1197920710. The cubic root of 64290245 is about 400.6037652935.

The spelling of 64290245 in words is "sixty-four million, two hundred ninety thousand, two hundred forty-five".