1834218145 has 16 divisors (see below), whose sum is σ = 2431866240. Its totient is φ = 1321010944.

The previous prime is 1834218091. The next prime is 1834218149. The reversal of 1834218145 is 5418124381.

It is a cyclic number.

It is not a de Polignac number, because 1834218145 - 2²⁵ = 1800663713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1834218149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467155 + ... + 471064.

It is an arithmetic number, because the mean of its divisors is an integer number (151991640).

Almost surely, 2^1834218145 is an apocalyptic number.

It is an amenable number.

1834218145 is a deficient number, since it is larger than the sum of its proper divisors (597648095).

1834218145 is a wasteful number, since it uses less digits than its factorization.

1834218145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938264.

The product of its digits is 30720, while the sum is 37.

The square root of 1834218145 is about 42827.7730567444. The cubic root of 1834218145 is about 1224.1002739504.

The spelling of 1834218145 in words is "one billion, eight hundred thirty-four million, two hundred eighteen thousand, one hundred forty-five".