64451152 has 40 divisors (see below), whose sum is σ = 133366464. Its totient is φ = 30100224.

The previous prime is 64451143. The next prime is 64451159. The reversal of 64451152 is 25115446.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64451152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64451159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13788 + ... + 17860.

Almost surely, 2^64451152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64451152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66683232).

64451152 is an abundant number, since it is smaller than the sum of its proper divisors (68915312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64451152 is a wasteful number, since it uses less digits than its factorization.

64451152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147 (or 4141 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 64451152 is about 8028.1474824520. The cubic root of 64451152 is about 400.9377000787.

Adding to 64451152 its reverse (25115446), we get a palindrome (89566598).

The spelling of 64451152 in words is "sixty-four million, four hundred fifty-one thousand, one hundred fifty-two".