144129465 has 24 divisors (see below), whose sum is σ = 250148808. Its totient is φ = 76769280.

The previous prime is 144129463. The next prime is 144129499. The reversal of 144129465 is 564921441.

It can be written as a sum of positive squares in 4 ways, for example, as 65221776 + 78907689 = 8076^2 + 8883^2 .

It is not a de Polignac number, because 144129465 - 2¹ = 144129463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144129463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44377 + ... + 47513.

It is an arithmetic number, because the mean of its divisors is an integer number (10422867).

Almost surely, 2^144129465 is an apocalyptic number.

144129465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144129465 is a deficient number, since it is larger than the sum of its proper divisors (106019343).

144129465 is a wasteful number, since it uses less digits than its factorization.

144129465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4169 (or 4166 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 144129465 is about 12005.3931630747. The cubic root of 144129465 is about 524.3053124775.

The spelling of 144129465 in words is "one hundred forty-four million, one hundred twenty-nine thousand, four hundred sixty-five".