144131257 has 2 divisors, whose sum is σ = 144131258. Its totient is φ = 144131256.

The previous prime is 144131213. The next prime is 144131263. The reversal of 144131257 is 752131441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130507776 + 13623481 = 11424^2 + 3691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144131257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144131297) 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, 72065628 + 72065629.

It is an arithmetic number, because the mean of its divisors is an integer number (72065629).

Almost surely, 2^144131257 is an apocalyptic number.

It is an amenable number.

144131257 is a deficient number, since it is larger than the sum of its proper divisors (1).

144131257 is an equidigital number, since it uses as much as digits as its factorization.

144131257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 144131257 is about 12005.4677959670. The cubic root of 144131257 is about 524.3074854110.

Adding to 144131257 its reverse (752131441), we get a palindrome (896262698).

The spelling of 144131257 in words is "one hundred forty-four million, one hundred thirty-one thousand, two hundred fifty-seven".