144121157 has 2 divisors, whose sum is σ = 144121158. Its totient is φ = 144121156.

The previous prime is 144121141. The next prime is 144121169. The reversal of 144121157 is 751121441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129367876 + 14753281 = 11374^2 + 3841^2 .

It is a cyclic number.

It is not a de Polignac number, because 144121157 - 2⁴ = 144121141 is a prime.

It is a super-3 number, since 3×144121157³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144121057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72060578 + 72060579.

It is an arithmetic number, because the mean of its divisors is an integer number (72060579).

Almost surely, 2^144121157 is an apocalyptic number.

It is an amenable number.

144121157 is a deficient number, since it is larger than the sum of its proper divisors (1).

144121157 is an equidigital number, since it uses as much as digits as its factorization.

144121157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 26.

The square root of 144121157 is about 12005.0471469295. The cubic root of 144121157 is about 524.2952381733.

Adding to 144121157 its reverse (751121441), we get a palindrome (895242598).

The spelling of 144121157 in words is "one hundred forty-four million, one hundred twenty-one thousand, one hundred fifty-seven".