144978 has 16 divisors (see below), whose sum is σ = 294816. Its totient is φ = 47520.

The previous prime is 144973. The next prime is 144983. The reversal of 144978 is 879441.

It is an interprime number because it is at equal distance from previous prime (144973) and next prime (144983).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144973) 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, 273 + ... + 603.

It is an arithmetic number, because the mean of its divisors is an integer number (18426).

2¹⁴⁴⁹⁷⁸ is an apocalyptic number.

144978 is an abundant number, since it is smaller than the sum of its proper divisors (149838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144978 is a wasteful number, since it uses less digits than its factorization.

144978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its digits is 8064, while the sum is 33.

The square root of 144978 is about 380.7597667822. The cubic root of 144978 is about 52.5332216036.

The spelling of 144978 in words is "one hundred forty-four thousand, nine hundred seventy-eight".