6481554 has 8 divisors (see below), whose sum is σ = 12963120. Its totient is φ = 2160516.

The previous prime is 6481543. The next prime is 6481571. The reversal of 6481554 is 4551846.

It is a sphenic number, since it is the product of 3 distinct primes.

6481554 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540124 + ... + 540135.

It is an arithmetic number, because the mean of its divisors is an integer number (1620390).

Almost surely, 2^6481554 is an apocalyptic number.

6481554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6481554 is a wasteful number, since it uses less digits than its factorization.

6481554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080264.

The product of its digits is 19200, while the sum is 33.

The square root of 6481554 is about 2545.8896284010. The cubic root of 6481554 is about 186.4488523738.

It can be divided in two parts, 64 and 81554, that added together give a palindrome (81618).

The spelling of 6481554 in words is "six million, four hundred eighty-one thousand, five hundred fifty-four".