144840967 has 2 divisors, whose sum is σ = 144840968. Its totient is φ = 144840966.

The previous prime is 144840947. The next prime is 144840989. The reversal of 144840967 is 769048441.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144840967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144840947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72420483 + 72420484.

It is an arithmetic number, because the mean of its divisors is an integer number (72420484).

Almost surely, 2^144840967 is an apocalyptic number.

144840967 is a deficient number, since it is larger than the sum of its proper divisors (1).

144840967 is an equidigital number, since it uses as much as digits as its factorization.

144840967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 144840967 is about 12034.9892812582. The cubic root of 144840967 is about 525.1666494384.

The spelling of 144840967 in words is "one hundred forty-four million, eight hundred forty thousand, nine hundred sixty-seven".