144923538 has 16 divisors (see below), whose sum is σ = 306897120. Its totient is φ = 45466176.

The previous prime is 144923533. The next prime is 144923549. The reversal of 144923538 is 835329441.

It is a junction number, because it is equal to n+sod(n) for n = 144923496 and 144923505.

It is not an unprimeable number, because it can be changed into a prime (144923533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710308 + ... + 710511.

It is an arithmetic number, because the mean of its divisors is an integer number (19181070).

Almost surely, 2^144923538 is an apocalyptic number.

144923538 is an abundant number, since it is smaller than the sum of its proper divisors (161973582).

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

144923538 is a wasteful number, since it uses less digits than its factorization.

144923538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420841.

The product of its digits is 103680, while the sum is 39.

The square root of 144923538 is about 12038.4192483897. The cubic root of 144923538 is about 525.2664262228.

The spelling of 144923538 in words is "one hundred forty-four million, nine hundred twenty-three thousand, five hundred thirty-eight".