144880693 has 2 divisors, whose sum is σ = 144880694. Its totient is φ = 144880692.

The previous prime is 144880663. The next prime is 144880739. The reversal of 144880693 is 396088441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78978769 + 65901924 = 8887^2 + 8118^2 .

It is a cyclic number.

It is not a de Polignac number, because 144880693 - 2¹⁷ = 144749621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144880663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72440346 + 72440347.

It is an arithmetic number, because the mean of its divisors is an integer number (72440347).

Almost surely, 2^144880693 is an apocalyptic number.

It is an amenable number.

144880693 is a deficient number, since it is larger than the sum of its proper divisors (1).

144880693 is an equidigital number, since it uses as much as digits as its factorization.

144880693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 144880693 is about 12036.6396058036. The cubic root of 144880693 is about 525.2146581008.

The spelling of 144880693 in words is "one hundred forty-four million, eight hundred eighty thousand, six hundred ninety-three".