64151512 has 16 divisors (see below), whose sum is σ = 120542400. Its totient is φ = 32006880.

The previous prime is 64151501. The next prime is 64151519. The reversal of 64151512 is 21515146.

It is a happy number.

It is a super-2 number, since 2×64151512² = 8230832983772288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64151519) 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 3 ways as a sum of consecutive naturals, for example, 4539 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (7533900).

Almost surely, 2^64151512 is an apocalyptic number.

It is an amenable number.

64151512 is a deficient number, since it is larger than the sum of its proper divisors (56390888).

64151512 is a wasteful number, since it uses less digits than its factorization.

64151512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17226 (or 17222 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 64151512 is about 8009.4639021597. The cubic root of 64151512 is about 400.3154012398.

Adding to 64151512 its reverse (21515146), we get a palindrome (85666658).

The spelling of 64151512 in words is "sixty-four million, one hundred fifty-one thousand, five hundred twelve".