144923537 has 4 divisors (see below), whose sum is σ = 158098416. Its totient is φ = 131748660.

The previous prime is 144923533. The next prime is 144923549. The reversal of 144923537 is 735329441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144923537 - 2² = 144923533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144923537.

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 3 ways as a sum of consecutive naturals, for example, 6587423 + ... + 6587444.

It is an arithmetic number, because the mean of its divisors is an integer number (39524604).

Almost surely, 2^144923537 is an apocalyptic number.

It is an amenable number.

144923537 is a deficient number, since it is larger than the sum of its proper divisors (13174879).

144923537 is a wasteful number, since it uses less digits than its factorization.

144923537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13174878.

The product of its digits is 90720, while the sum is 38.

The square root of 144923537 is about 12038.4192068560. The cubic root of 144923537 is about 525.2664250146.

The spelling of 144923537 in words is "one hundred forty-four million, nine hundred twenty-three thousand, five hundred thirty-seven".