308144145 has 16 divisors (see below), whose sum is σ = 493384320. Its totient is φ = 164225664.

The previous prime is 308144143. The next prime is 308144167. The reversal of 308144145 is 541441803.

It is not a de Polignac number, because 308144145 - 2¹ = 308144143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (308144141) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16797 + ... + 29973.

It is an arithmetic number, because the mean of its divisors is an integer number (30836520).

Almost surely, 2^308144145 is an apocalyptic number.

It is an amenable number.

308144145 is a deficient number, since it is larger than the sum of its proper divisors (185240175).

308144145 is a wasteful number, since it uses less digits than its factorization.

308144145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14744.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 308144145 is about 17554.0350062315. The cubic root of 308144145 is about 675.4366776587.

Adding to 308144145 its reverse (541441803), we get a palindrome (849585948).

It can be divided in two parts, 308 and 144145, that added together give a triangular number (144453 = T₅₃₇).

The spelling of 308144145 in words is "three hundred eight million, one hundred forty-four thousand, one hundred forty-five".