282213561 has 32 divisors (see below), whose sum is σ = 436071168. Its totient is φ = 159022080.

The previous prime is 282213559. The next prime is 282213647. The reversal of 282213561 is 165312282.

It is not a de Polignac number, because 282213561 - 2¹ = 282213559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (282213661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 670131 + ... + 670551.

It is an arithmetic number, because the mean of its divisors is an integer number (13627224).

Almost surely, 2^282213561 is an apocalyptic number.

282213561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

282213561 is a deficient number, since it is larger than the sum of its proper divisors (153857607).

282213561 is a wasteful number, since it uses less digits than its factorization.

282213561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801.

The product of its digits is 5760, while the sum is 30.

The square root of 282213561 is about 16799.2131065714. The cubic root of 282213561 is about 655.9327162116.

The spelling of 282213561 in words is "two hundred eighty-two million, two hundred thirteen thousand, five hundred sixty-one".