144994000 has 40 divisors (see below), whose sum is σ = 350600328. Its totient is φ = 57996800.

The previous prime is 144993983. The next prime is 144994019. The reversal of 144994000 is 499441.

It can be written as a sum of positive squares in 4 ways, for example, as 12559936 + 132434064 = 3544^2 + 11508^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34249 + ... + 38248.

Almost surely, 2^144994000 is an apocalyptic number.

144994000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144994000 is an abundant number, since it is smaller than the sum of its proper divisors (205606328).

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

144994000 is an equidigital number, since it uses as much as digits as its factorization.

144994000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72520 (or 72504 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 144994000 is about 12041.3454397754. The cubic root of 144994000 is about 525.3515408212.

The spelling of 144994000 in words is "one hundred forty-four million, nine hundred ninety-four thousand".