144677887 has 2 divisors, whose sum is σ = 144677888. Its totient is φ = 144677886.

The previous prime is 144677879. The next prime is 144677903. The reversal of 144677887 is 788776441.

It is a weak prime.

It is an emirp because it is prime and its reverse (788776441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144677887 - 2³ = 144677879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144677087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72338943 + 72338944.

It is an arithmetic number, because the mean of its divisors is an integer number (72338944).

Almost surely, 2^144677887 is an apocalyptic number.

144677887 is a deficient number, since it is larger than the sum of its proper divisors (1).

144677887 is an equidigital number, since it uses as much as digits as its factorization.

144677887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2107392, while the sum is 52.

The square root of 144677887 is about 12028.2121281594. The cubic root of 144677887 is about 524.9694760787.

The spelling of 144677887 in words is "one hundred forty-four million, six hundred seventy-seven thousand, eight hundred eighty-seven".