144174987 has 12 divisors (see below), whose sum is σ = 227184984. Its totient is φ = 87378720.

The previous prime is 144174949. The next prime is 144174997. The reversal of 144174987 is 789471441.

It is a happy number.

144174987 is a `hidden beast` number, since 144 + 17 + 498 + 7 = 666.

It is not a de Polignac number, because 144174987 - 2⁷ = 144174859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144174997) 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 11 ways as a sum of consecutive naturals, for example, 728058 + ... + 728255.

It is an arithmetic number, because the mean of its divisors is an integer number (18932082).

Almost surely, 2^144174987 is an apocalyptic number.

144174987 is a deficient number, since it is larger than the sum of its proper divisors (83009997).

144174987 is a wasteful number, since it uses less digits than its factorization.

144174987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456330 (or 1456327 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 144174987 is about 12007.2889113238. The cubic root of 144174987 is about 524.3605057120.

It can be divided in two parts, 144174 and 987, that added together give a square (145161 = 381²).

The spelling of 144174987 in words is "one hundred forty-four million, one hundred seventy-four thousand, nine hundred eighty-seven".