64071530 has 16 divisors (see below), whose sum is σ = 115499304. Its totient is φ = 25590720.

The previous prime is 64071517. The next prime is 64071559. The reversal of 64071530 is 3517046.

It can be written as a sum of positive squares in 4 ways, for example, as 57866449 + 6205081 = 7607^2 + 2491^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64071530.

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, 2960 + ... + 11700.

Almost surely, 2^64071530 is an apocalyptic number.

64071530 is a deficient number, since it is larger than the sum of its proper divisors (51427774).

64071530 is a wasteful number, since it uses less digits than its factorization.

64071530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9481.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 64071530 is about 8004.4693765421. The cubic root of 64071530 is about 400.1489653498.

Adding to 64071530 its reverse (3517046), we get a palindrome (67588576).

The spelling of 64071530 in words is "sixty-four million, seventy-one thousand, five hundred thirty".