234816145 has 16 divisors (see below), whose sum is σ = 289387728. Its totient is φ = 182845440.

The previous prime is 234816139. The next prime is 234816149. The reversal of 234816145 is 541618432.

It can be written as a sum of positive squares in 8 ways, for example, as 603729 + 234212416 = 777^2 + 15304^2 .

It is not a de Polignac number, because 234816145 - 2¹⁹ = 234291857 is a prime.

It is a super-2 number, since 2×234816145² = 110277243905322050, which contains 22 as substring.

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 234816145.

It is not an unprimeable number, because it can be changed into a prime (234816149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25617 + ... + 33553.

It is an arithmetic number, because the mean of its divisors is an integer number (18086733).

Almost surely, 2^234816145 is an apocalyptic number.

It is an amenable number.

234816145 is a deficient number, since it is larger than the sum of its proper divisors (54571583).

234816145 is an equidigital number, since it uses as much as digits as its factorization.

234816145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8100.

The product of its digits is 23040, while the sum is 34.

The square root of 234816145 is about 15323.7118545084. The cubic root of 234816145 is about 616.9396053372.

The spelling of 234816145 in words is "two hundred thirty-four million, eight hundred sixteen thousand, one hundred forty-five".