224121455 has 16 divisors (see below), whose sum is σ = 285488064. Its totient is φ = 168322560.

The previous prime is 224121439. The next prime is 224121509. The reversal of 224121455 is 554121422.

It is not a de Polignac number, because 224121455 - 2⁴ = 224121439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32654 + ... + 38916.

It is an arithmetic number, because the mean of its divisors is an integer number (17843004).

Almost surely, 2^224121455 is an apocalyptic number.

224121455 is a deficient number, since it is larger than the sum of its proper divisors (61366609).

224121455 is a wasteful number, since it uses less digits than its factorization.

224121455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706.

The product of its digits is 3200, while the sum is 26.

The square root of 224121455 is about 14970.6865240042. The cubic root of 224121455 is about 607.4275391002.

Adding to 224121455 its reverse (554121422), we get a palindrome (778242877).

The spelling of 224121455 in words is "two hundred twenty-four million, one hundred twenty-one thousand, four hundred fifty-five".