144512987 has 8 divisors (see below), whose sum is σ = 148599360. Its totient is φ = 140453440.

The previous prime is 144512983. The next prime is 144512989. The reversal of 144512987 is 789215441.

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

It is a cyclic number.

It is not a de Polignac number, because 144512987 - 2² = 144512983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144512983) 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, 4478 + ... + 17580.

It is an arithmetic number, because the mean of its divisors is an integer number (18574920).

Almost surely, 2^144512987 is an apocalyptic number.

144512987 is a deficient number, since it is larger than the sum of its proper divisors (4086373).

144512987 is a wasteful number, since it uses less digits than its factorization.

144512987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13413.

The product of its digits is 80640, while the sum is 41.

The square root of 144512987 is about 12021.3554560208. The cubic root of 144512987 is about 524.7699515157.

The spelling of 144512987 in words is "one hundred forty-four million, five hundred twelve thousand, nine hundred eighty-seven".