144540987 has 16 divisors (see below), whose sum is σ = 204485760. Its totient is φ = 90502272.

The previous prime is 144540937. The next prime is 144540997. The reversal of 144540987 is 789045441.

144540987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144540987 - 2⁸ = 144540731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144540937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23964 + ... + 29382.

It is an arithmetic number, because the mean of its divisors is an integer number (12780360).

Almost surely, 2^144540987 is an apocalyptic number.

144540987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144540987 is a deficient number, since it is larger than the sum of its proper divisors (59944773).

144540987 is a wasteful number, since it uses less digits than its factorization.

144540987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5962.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 144540987 is about 12022.5199937451. The cubic root of 144540987 is about 524.8038414566.

The spelling of 144540987 in words is "one hundred forty-four million, five hundred forty thousand, nine hundred eighty-seven".