144465397 has 2 divisors, whose sum is σ = 144465398. Its totient is φ = 144465396.

The previous prime is 144465367. The next prime is 144465403. The reversal of 144465397 is 793564441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127441521 + 17023876 = 11289^2 + 4126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144465397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144465317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72232698 + 72232699.

It is an arithmetic number, because the mean of its divisors is an integer number (72232699).

Almost surely, 2^144465397 is an apocalyptic number.

It is an amenable number.

144465397 is a deficient number, since it is larger than the sum of its proper divisors (1).

144465397 is an equidigital number, since it uses as much as digits as its factorization.

144465397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 144465397 is about 12019.3758989392. The cubic root of 144465397 is about 524.7123406753.

The spelling of 144465397 in words is "one hundred forty-four million, four hundred sixty-five thousand, three hundred ninety-seven".