64481461 has 4 divisors (see below), whose sum is σ = 70343424. Its totient is φ = 58619500.

The previous prime is 64481447. The next prime is 64481477. The reversal of 64481461 is 16418446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64481461 - 2¹¹ = 64479413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64481441) 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, 2930965 + ... + 2930986.

It is an arithmetic number, because the mean of its divisors is an integer number (17585856).

Almost surely, 2^64481461 is an apocalyptic number.

It is an amenable number.

64481461 is a deficient number, since it is larger than the sum of its proper divisors (5861963).

64481461 is a wasteful number, since it uses less digits than its factorization.

64481461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861962.

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

The square root of 64481461 is about 8030.0349314309. The cubic root of 64481461 is about 401.0005389677. Note that the first 3 decimals are identical.

The spelling of 64481461 in words is "sixty-four million, four hundred eighty-one thousand, four hundred sixty-one".