144670005 has 24 divisors (see below), whose sum is σ = 252370872. Its totient is φ = 76662144.

The previous prime is 144670003. The next prime is 144670007. The reversal of 144670005 is 500076441.

It is an interprime number because it is at equal distance from previous prime (144670003) and next prime (144670007).

It can be written as a sum of positive squares in 4 ways, for example, as 18714276 + 125955729 = 4326^2 + 11223^2 .

It is not a de Polignac number, because 144670005 - 2¹ = 144670003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144670003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3174 + ... + 17303.

It is an arithmetic number, because the mean of its divisors is an integer number (10515453).

Almost surely, 2^144670005 is an apocalyptic number.

144670005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144670005 is a deficient number, since it is larger than the sum of its proper divisors (107700867).

144670005 is a wasteful number, since it uses less digits than its factorization.

144670005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20645 (or 20642 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 144670005 is about 12027.8844773302. The cubic root of 144670005 is about 524.9599425219.

The spelling of 144670005 in words is "one hundred forty-four million, six hundred seventy thousand, five".