144182421 has 12 divisors (see below), whose sum is σ = 208510848. Its totient is φ = 96007464.

The previous prime is 144182413. The next prime is 144182429. The reversal of 144182421 is 124281441.

144182421 is a `hidden beast` number, since 1 + 4 + 418 + 242 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (144182413) and next prime (144182429).

It is not a de Polignac number, because 144182421 - 2³ = 144182413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144182429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1125 + ... + 17018.

It is an arithmetic number, because the mean of its divisors is an integer number (17375904).

Almost surely, 2^144182421 is an apocalyptic number.

It is an amenable number.

144182421 is a deficient number, since it is larger than the sum of its proper divisors (64328427).

144182421 is a wasteful number, since it uses less digits than its factorization.

144182421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19032 (or 19029 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 144182421 is about 12007.5984693027. The cubic root of 144182421 is about 524.3695179757.

The spelling of 144182421 in words is "one hundred forty-four million, one hundred eighty-two thousand, four hundred twenty-one".