614238145 has 4 divisors (see below), whose sum is σ = 737085780. Its totient is φ = 491390512.

The previous prime is 614238143. The next prime is 614238173. The reversal of 614238145 is 541832416.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 322238401 + 291999744 = 17951^2 + 17088^2 .

It is a cyclic number.

It is not a de Polignac number, because 614238145 - 2¹ = 614238143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 614238145.

It is not an unprimeable number, because it can be changed into a prime (614238143) 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 3 ways as a sum of consecutive naturals, for example, 61423810 + ... + 61423819.

It is an arithmetic number, because the mean of its divisors is an integer number (184271445).

Almost surely, 2^614238145 is an apocalyptic number.

It is an amenable number.

614238145 is a deficient number, since it is larger than the sum of its proper divisors (122847635).

614238145 is a wasteful number, since it uses less digits than its factorization.

614238145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122847634.

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

The square root of 614238145 is about 24783.8282958868. The cubic root of 614238145 is about 850.0521974866.

The spelling of 614238145 in words is "six hundred fourteen million, two hundred thirty-eight thousand, one hundred forty-five".