214631657 has 8 divisors (see below), whose sum is σ = 230736000. Its totient is φ = 199008144.

The previous prime is 214631629. The next prime is 214631663. The reversal of 214631657 is 756136412.

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

It is a cyclic number.

It is not a de Polignac number, because 214631657 - 2¹⁸ = 214369513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214631617) 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 7 ways as a sum of consecutive naturals, for example, 119282 + ... + 121067.

It is an arithmetic number, because the mean of its divisors is an integer number (28842000).

Almost surely, 2^214631657 is an apocalyptic number.

It is an amenable number.

214631657 is a deficient number, since it is larger than the sum of its proper divisors (16104343).

214631657 is a wasteful number, since it uses less digits than its factorization.

214631657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240415.

The product of its digits is 30240, while the sum is 35.

The square root of 214631657 is about 14650.3125222638. The cubic root of 214631657 is about 598.7303308697.

The spelling of 214631657 in words is "two hundred fourteen million, six hundred thirty-one thousand, six hundred fifty-seven".