144121277 has 2 divisors, whose sum is σ = 144121278. Its totient is φ = 144121276.

The previous prime is 144121261. The next prime is 144121279. The reversal of 144121277 is 772121441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73376356 + 70744921 = 8566^2 + 8411^2 .

It is a cyclic number.

It is not a de Polignac number, because 144121277 - 2⁴ = 144121261 is a prime.

It is a super-2 number, since 2×144121277² = 41541884968221458, which contains 22 as substring.

Together with 144121279, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144121279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72060638 + 72060639.

It is an arithmetic number, because the mean of its divisors is an integer number (72060639).

Almost surely, 2^144121277 is an apocalyptic number.

It is an amenable number.

144121277 is a deficient number, since it is larger than the sum of its proper divisors (1).

144121277 is an equidigital number, since it uses as much as digits as its factorization.

144121277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3136, while the sum is 29.

The square root of 144121277 is about 12005.0521448264. The cubic root of 144121277 is about 524.2953836883.

The spelling of 144121277 in words is "one hundred forty-four million, one hundred twenty-one thousand, two hundred seventy-seven".