64511230 has 16 divisors (see below), whose sum is σ = 132708960. Its totient is φ = 22118112.

The previous prime is 64511207. The next prime is 64511231. The reversal of 64511230 is 3211546.

It is a super-2 number, since 2×64511230² = 8323397592225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64511231) 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 7 ways as a sum of consecutive naturals, for example, 460725 + ... + 460864.

It is an arithmetic number, because the mean of its divisors is an integer number (8294310).

Almost surely, 2^64511230 is an apocalyptic number.

64511230 is an abundant number, since it is smaller than the sum of its proper divisors (68197730).

64511230 is a wasteful number, since it uses less digits than its factorization.

64511230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921603.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 64511230 is about 8031.8883209367. Note that the first 3 decimals coincide. The cubic root of 64511230 is about 401.0622391231.

Adding to 64511230 its reverse (3211546), we get a palindrome (67722776).

The spelling of 64511230 in words is "sixty-four million, five hundred eleven thousand, two hundred thirty".