214554981 has 8 divisors (see below), whose sum is σ = 286187040. Its totient is φ = 142979792.

The previous prime is 214554947. The next prime is 214554983. The reversal of 214554981 is 189455412.

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 214554981 - 2¹⁵ = 214522213 is a prime.

It is a super-2 number, since 2×214554981² = 92067679743820722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214554983) 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, 4455 + ... + 21188.

It is an arithmetic number, because the mean of its divisors is an integer number (35773380).

Almost surely, 2^214554981 is an apocalyptic number.

It is an amenable number.

214554981 is a deficient number, since it is larger than the sum of its proper divisors (71632059).

214554981 is a wasteful number, since it uses less digits than its factorization.

214554981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28435.

The product of its digits is 57600, while the sum is 39.

The square root of 214554981 is about 14647.6954160032. The cubic root of 214554981 is about 598.6590246524.

The spelling of 214554981 in words is "two hundred fourteen million, five hundred fifty-four thousand, nine hundred eighty-one".