214143345 has 80 divisors (see below), whose sum is σ = 418960080. Its totient is φ = 104011776.

The previous prime is 214143329. The next prime is 214143353. The reversal of 214143345 is 543341412.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10909809 + 203233536 = 3303^2 + 14256^2 .

It is not a de Polignac number, because 214143345 - 2⁴ = 214143329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

214143345 is a Rhonda number in base 10.

Its product of digits (5760) is a multiple of the sum of its prime factors (576).

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 79 ways as a sum of consecutive naturals, for example, 468357 + ... + 468813.

It is an arithmetic number, because the mean of its divisors is an integer number (5237001).

Almost surely, 2^214143345 is an apocalyptic number.

It is an amenable number.

214143345 is a deficient number, since it is larger than the sum of its proper divisors (204816735).

214143345 is a wasteful number, since it uses less digits than its factorization.

214143345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 567 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 214143345 is about 14633.6374493835. The cubic root of 214143345 is about 598.2759256914.

Adding to 214143345 its reverse (543341412), we get a palindrome (757484757).

The spelling of 214143345 in words is "two hundred fourteen million, one hundred forty-three thousand, three hundred forty-five".