144342745 has 8 divisors (see below), whose sum is σ = 173315016. Its totient is φ = 115405056.

The previous prime is 144342721. The next prime is 144342769. The reversal of 144342745 is 547243441.

It is an interprime number because it is at equal distance from previous prime (144342721) and next prime (144342769).

It can be written as a sum of positive squares in 4 ways, for example, as 6702921 + 137639824 = 2589^2 + 11732^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144342745 - 2¹¹ = 144340697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144342745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1659 + ... + 17071.

It is an arithmetic number, because the mean of its divisors is an integer number (21664377).

Almost surely, 2^144342745 is an apocalyptic number.

It is an amenable number.

144342745 is a deficient number, since it is larger than the sum of its proper divisors (28972271).

144342745 is a wasteful number, since it uses less digits than its factorization.

144342745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17291.

The product of its digits is 53760, while the sum is 34.

The square root of 144342745 is about 12014.2725539252. The cubic root of 144342745 is about 524.5638039758.

The spelling of 144342745 in words is "one hundred forty-four million, three hundred forty-two thousand, seven hundred forty-five".