144435145 has 8 divisors (see below), whose sum is σ = 183517704. Its totient is φ = 108751104.

The previous prime is 144435143. The next prime is 144435173. The reversal of 144435145 is 541534441.

It can be written as a sum of positive squares in 4 ways, for example, as 10732176 + 133702969 = 3276^2 + 11563^2 .

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 144435145 - 2¹ = 144435143 is a prime.

It is a super-2 number, since 2×144435145² = 41723022222342050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144435143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849534 + ... + 849703.

It is an arithmetic number, because the mean of its divisors is an integer number (22939713).

Almost surely, 2^144435145 is an apocalyptic number.

It is an amenable number.

144435145 is a deficient number, since it is larger than the sum of its proper divisors (39082559).

144435145 is a wasteful number, since it uses less digits than its factorization.

144435145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699259.

The product of its digits is 19200, while the sum is 31.

The square root of 144435145 is about 12018.1173650452. The cubic root of 144435145 is about 524.6757120519.

Adding to 144435145 its reverse (541534441), we get a palindrome (685969586).

The spelling of 144435145 in words is "one hundred forty-four million, four hundred thirty-five thousand, one hundred forty-five".