214292981 has 8 divisors (see below), whose sum is σ = 248356224. Its totient is φ = 181092240.

The previous prime is 214292971. The next prime is 214292983. The reversal of 214292981 is 189292412.

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

It is not a de Polignac number, because 214292981 - 2²² = 210098677 is a prime.

It is a super-2 number, since 2×214292981² = 91842963411732722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214292983) 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 7 ways as a sum of consecutive naturals, for example, 215090 + ... + 216083.

It is an arithmetic number, because the mean of its divisors is an integer number (31044528).

Almost surely, 2^214292981 is an apocalyptic number.

It is an amenable number.

214292981 is a deficient number, since it is larger than the sum of its proper divisors (34063243).

214292981 is an equidigital number, since it uses as much as digits as its factorization.

214292981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431251.

The product of its digits is 20736, while the sum is 38.

The square root of 214292981 is about 14638.7492976688. The cubic root of 214292981 is about 598.4152447886.

The spelling of 214292981 in words is "two hundred fourteen million, two hundred ninety-two thousand, nine hundred eighty-one".