4145544 has 96 divisors (see below), whose sum is σ = 12492480. Its totient is φ = 1233792.

The previous prime is 4145539. The next prime is 4145549. The reversal of 4145544 is 4455414.

4145544 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4145539) and next prime (4145549).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4145549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40197 + ... + 40299.

It is an arithmetic number, because the mean of its divisors is an integer number (130130).

Almost surely, 2^4145544 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 4145544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6246240).

4145544 is an abundant number, since it is smaller than the sum of its proper divisors (8346936).

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

4145544 is a wasteful number, since it uses less digits than its factorization.

4145544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 164 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 4145544 is about 2036.0609028219. The cubic root of 4145544 is about 160.6425205091.

The spelling of 4145544 in words is "four million, one hundred forty-five thousand, five hundred forty-four".