144135487 has 2 divisors, whose sum is σ = 144135488. Its totient is φ = 144135486.

The previous prime is 144135473. The next prime is 144135491. The reversal of 144135487 is 784531441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144135487 - 2¹⁹ = 143611199 is a prime.

It is a super-2 number, since 2×144135487² = 41550077225454338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144135427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72067743 + 72067744.

It is an arithmetic number, because the mean of its divisors is an integer number (72067744).

Almost surely, 2^144135487 is an apocalyptic number.

144135487 is a deficient number, since it is larger than the sum of its proper divisors (1).

144135487 is an equidigital number, since it uses as much as digits as its factorization.

144135487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 37.

The square root of 144135487 is about 12005.6439644027. The cubic root of 144135487 is about 524.3126145296.

It can be divided in two parts, 1441354 and 87, that added together give a palindrome (1441441).

The spelling of 144135487 in words is "one hundred forty-four million, one hundred thirty-five thousand, four hundred eighty-seven".