214881557 has 8 divisors (see below), whose sum is σ = 238839840. Its totient is φ = 191660560.

The previous prime is 214881539. The next prime is 214881613. The reversal of 214881557 is 755188412.

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 214881557 - 2¹⁴ = 214865173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214881757) 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, 183707 + ... + 184872.

It is an arithmetic number, because the mean of its divisors is an integer number (29854980).

Almost surely, 2^214881557 is an apocalyptic number.

It is an amenable number.

214881557 is a deficient number, since it is larger than the sum of its proper divisors (23958283).

214881557 is a wasteful number, since it uses less digits than its factorization.

214881557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368643.

The product of its digits is 89600, while the sum is 41.

The square root of 214881557 is about 14658.8388694330. The cubic root of 214881557 is about 598.9626120404.

The spelling of 214881557 in words is "two hundred fourteen million, eight hundred eighty-one thousand, five hundred fifty-seven".