144806437 has 2 divisors, whose sum is σ = 144806438. Its totient is φ = 144806436.

The previous prime is 144806407. The next prime is 144806489. The reversal of 144806437 is 734608441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111640356 + 33166081 = 10566^2 + 5759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144806437 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 144806396 and 144806405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144806407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72403218 + 72403219.

It is an arithmetic number, because the mean of its divisors is an integer number (72403219).

Almost surely, 2^144806437 is an apocalyptic number.

It is an amenable number.

144806437 is a deficient number, since it is larger than the sum of its proper divisors (1).

144806437 is an equidigital number, since it uses as much as digits as its factorization.

144806437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 144806437 is about 12033.5546286208. The cubic root of 144806437 is about 525.1249129831.

The spelling of 144806437 in words is "one hundred forty-four million, eight hundred six thousand, four hundred thirty-seven".