154443145 has 8 divisors (see below), whose sum is σ = 185796360. Its totient is φ = 123244800.

The previous prime is 154443131. The next prime is 154443151. The reversal of 154443145 is 541344451.

It can be written as a sum of positive squares in 4 ways, for example, as 91145209 + 63297936 = 9547^2 + 7956^2 .

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

It is not a de Polignac number, because 154443145 - 2⁷ = 154443017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36510 + ... + 40519.

It is an arithmetic number, because the mean of its divisors is an integer number (23224545).

Almost surely, 2^154443145 is an apocalyptic number.

It is an amenable number.

154443145 is a deficient number, since it is larger than the sum of its proper divisors (31353215).

154443145 is an equidigital number, since it uses as much as digits as its factorization.

154443145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77435.

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

The square root of 154443145 is about 12427.5156407063. The cubic root of 154443145 is about 536.5244840645.

Adding to 154443145 its reverse (541344451), we get a palindrome (695787596).

The spelling of 154443145 in words is "one hundred fifty-four million, four hundred forty-three thousand, one hundred forty-five".