4155144 has 32 divisors (see below), whose sum is σ = 11872320. Its totient is φ = 1187136.

The previous prime is 4155121. The next prime is 4155161. The reversal of 4155144 is 4415514.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12199 + ... + 12534.

It is an arithmetic number, because the mean of its divisors is an integer number (371010).

Almost surely, 2^4155144 is an apocalyptic number.

It is an amenable number.

4155144 is an abundant number, since it is smaller than the sum of its proper divisors (7717176).

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

4155144 is a wasteful number, since it uses less digits than its factorization.

4155144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24749 (or 24745 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 4155144 is about 2038.4170328959. The cubic root of 4155144 is about 160.7664269900.

The spelling of 4155144 in words is "four million, one hundred fifty-five thousand, one hundred forty-four".