144923994 has 24 divisors (see below), whose sum is σ = 314533440. Its totient is φ = 48226248.

The previous prime is 144923981. The next prime is 144924037. The reversal of 144923994 is 499329441.

144923994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4639 + ... + 17645.

It is an arithmetic number, because the mean of its divisors is an integer number (13105560).

Almost surely, 2^144923994 is an apocalyptic number.

144923994 is an abundant number, since it is smaller than the sum of its proper divisors (169609446).

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

144923994 is a wasteful number, since it uses less digits than its factorization.

144923994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13634 (or 13631 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 144923994 is about 12038.4381877385. The cubic root of 144923994 is about 525.2669771368.

The spelling of 144923994 in words is "one hundred forty-four million, nine hundred twenty-three thousand, nine hundred ninety-four".