214639481 has 8 divisors (see below), whose sum is σ = 245421120. Its totient is φ = 183887568.

The previous prime is 214639457. The next prime is 214639489. The reversal of 214639481 is 184936412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214639481 is a prime.

It is a super-2 number, since 2×214639481² = 92140213607898722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214639489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11150 + ... + 23528.

It is an arithmetic number, because the mean of its divisors is an integer number (30677640).

Almost surely, 2^214639481 is an apocalyptic number.

It is an amenable number.

214639481 is a deficient number, since it is larger than the sum of its proper divisors (30781639).

214639481 is a wasteful number, since it uses less digits than its factorization.

214639481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14863.

The product of its digits is 41472, while the sum is 38.

The square root of 214639481 is about 14650.5795448508. The cubic root of 214639481 is about 598.7376059835.

The spelling of 214639481 in words is "two hundred fourteen million, six hundred thirty-nine thousand, four hundred eighty-one".