4554121000 has 128 divisors (see below), whose sum is σ = 12520085760. Its totient is φ = 1528608000.

The previous prime is 4554120971. The next prime is 4554121009. The reversal of 4554121000 is 1214554.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (4554121009) 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 31 ways as a sum of consecutive naturals, for example, 127077 + ... + 158923.

It is an arithmetic number, because the mean of its divisors is an integer number (97813170).

Almost surely, 2^4554121000 is an apocalyptic number.

4554121000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4554121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6260042880).

4554121000 is an abundant number, since it is smaller than the sum of its proper divisors (7965964760).

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

4554121000 is a wasteful number, since it uses less digits than its factorization.

4554121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31892 (or 31878 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 4554121000 is about 67484.2277869429. The cubic root of 4554121000 is about 1657.5559184203. Note that the first 3 decimals are identical.

Adding to 4554121000 its reverse (1214554), we get a palindrome (4555335554).

The spelling of 4554121000 in words is "four billion, five hundred fifty-four million, one hundred twenty-one thousand".