144762649 has 2 divisors, whose sum is σ = 144762650. Its totient is φ = 144762648.

The previous prime is 144762647. The next prime is 144762659. The reversal of 144762649 is 946267441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132089049 + 12673600 = 11493^2 + 3560^2 .

It is a cyclic number.

It is not a de Polignac number, because 144762649 - 2¹ = 144762647 is a prime.

Together with 144762647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144762641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72381324 + 72381325.

It is an arithmetic number, because the mean of its divisors is an integer number (72381325).

Almost surely, 2^144762649 is an apocalyptic number.

It is an amenable number.

144762649 is a deficient number, since it is larger than the sum of its proper divisors (1).

144762649 is an equidigital number, since it uses as much as digits as its factorization.

144762649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 144762649 is about 12031.7350785329. The cubic root of 144762649 is about 525.0719768285.

The spelling of 144762649 in words is "one hundred forty-four million, seven hundred sixty-two thousand, six hundred forty-nine".