144935551 has 2 divisors, whose sum is σ = 144935552. Its totient is φ = 144935550.

The previous prime is 144935543. The next prime is 144935561. The reversal of 144935551 is 155539441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144935551 - 2³ = 144935543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144935551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144935561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72467775 + 72467776.

It is an arithmetic number, because the mean of its divisors is an integer number (72467776).

Almost surely, 2^144935551 is an apocalyptic number.

144935551 is a deficient number, since it is larger than the sum of its proper divisors (1).

144935551 is an equidigital number, since it uses as much as digits as its factorization.

144935551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 37.

The square root of 144935551 is about 12038.9181822953. The cubic root of 144935551 is about 525.2809392810.

The spelling of 144935551 in words is "one hundred forty-four million, nine hundred thirty-five thousand, five hundred fifty-one".