221413354 has 8 divisors (see below), whose sum is σ = 332974980. Its totient is φ = 110421696.

The previous prime is 221413343. The next prime is 221413391. The reversal of 221413354 is 453314122.

It can be written as a sum of positive squares in 2 ways, for example, as 191961025 + 29452329 = 13855^2 + 5427^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141519 + ... + 143074.

Almost surely, 2^221413354 is an apocalyptic number.

221413354 is a deficient number, since it is larger than the sum of its proper divisors (111561626).

221413354 is a wasteful number, since it uses less digits than its factorization.

221413354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284984.

The product of its digits is 2880, while the sum is 25.

The square root of 221413354 is about 14879.9648521090. The cubic root of 221413354 is about 604.9710652555.

Adding to 221413354 its reverse (453314122), we get a palindrome (674727476).

The spelling of 221413354 in words is "two hundred twenty-one million, four hundred thirteen thousand, three hundred fifty-four".