64481146 has 4 divisors (see below), whose sum is σ = 96721722. Its totient is φ = 32240572.

The previous prime is 64481141. The next prime is 64481171. The reversal of 64481146 is 64118446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37075921 + 27405225 = 6089^2 + 5235^2 .

It is not an unprimeable number, because it can be changed into a prime (64481141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16120285 + ... + 16120288.

Almost surely, 2^64481146 is an apocalyptic number.

64481146 is a deficient number, since it is larger than the sum of its proper divisors (32240576).

64481146 is a wasteful number, since it uses less digits than its factorization.

64481146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32240575.

The product of its digits is 18432, while the sum is 34.

The square root of 64481146 is about 8030.0153175445. The cubic root of 64481146 is about 400.9998859874. Note that the first 3 decimals are identical.

The spelling of 64481146 in words is "sixty-four million, four hundred eighty-one thousand, one hundred forty-six".