144442887 has 8 divisors (see below), whose sum is σ = 193655280. Its totient is φ = 95762880.

The previous prime is 144442873. The next prime is 144442901. The reversal of 144442887 is 788244441.

It is an interprime number because it is at equal distance from previous prime (144442873) and next prime (144442901).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144442887 - 2¹¹ = 144440839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144442867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132462 + ... + 133547.

It is an arithmetic number, because the mean of its divisors is an integer number (24206910).

Almost surely, 2^144442887 is an apocalyptic number.

144442887 is a deficient number, since it is larger than the sum of its proper divisors (49212393).

144442887 is a wasteful number, since it uses less digits than its factorization.

144442887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266193.

The product of its digits is 229376, while the sum is 42.

The square root of 144442887 is about 12018.4394577666. The cubic root of 144442887 is about 524.6850864249.

The spelling of 144442887 in words is "one hundred forty-four million, four hundred forty-two thousand, eight hundred eighty-seven".