214557345 has 24 divisors (see below), whose sum is σ = 373119552. Its totient is φ = 114055200.

The previous prime is 214557263. The next prime is 214557347. The reversal of 214557345 is 543755412.

214557345 is a `hidden beast` number, since 2 + 1 + 45 + 573 + 45 = 666.

It is not a de Polignac number, because 214557345 - 2¹² = 214553249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214557347) 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 23 ways as a sum of consecutive naturals, for example, 6330 + ... + 21660.

It is an arithmetic number, because the mean of its divisors is an integer number (15546648).

Almost surely, 2^214557345 is an apocalyptic number.

It is an amenable number.

214557345 is a deficient number, since it is larger than the sum of its proper divisors (158562207).

214557345 is a wasteful number, since it uses less digits than its factorization.

214557345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15653 (or 15650 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 214557345 is about 14647.7761110689. The cubic root of 214557345 is about 598.6612233502.

The spelling of 214557345 in words is "two hundred fourteen million, five hundred fifty-seven thousand, three hundred forty-five".