144651901 has 2 divisors, whose sum is σ = 144651902. Its totient is φ = 144651900.

The previous prime is 144651851. The next prime is 144651931. The reversal of 144651901 is 109156441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144624676 + 27225 = 12026^2 + 165^2 .

It is an emirp because it is prime and its reverse (109156441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144651901 - 2¹⁵ = 144619133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144651931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72325950 + 72325951.

It is an arithmetic number, because the mean of its divisors is an integer number (72325951).

Almost surely, 2^144651901 is an apocalyptic number.

It is an amenable number.

144651901 is a deficient number, since it is larger than the sum of its proper divisors (1).

144651901 is an equidigital number, since it uses as much as digits as its factorization.

144651901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 144651901 is about 12027.1318692363. The cubic root of 144651901 is about 524.9380437847.

The spelling of 144651901 in words is "one hundred forty-four million, six hundred fifty-one thousand, nine hundred one".