227121455 has 16 divisors (see below), whose sum is σ = 298747008. Its totient is φ = 164388000.

The previous prime is 227121439. The next prime is 227121457. The reversal of 227121455 is 554121722.

It is a happy number.

It is not a de Polignac number, because 227121455 - 2⁴ = 227121439 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 (227121457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1820 + ... + 21390.

It is an arithmetic number, because the mean of its divisors is an integer number (18671688).

Almost surely, 2^227121455 is an apocalyptic number.

227121455 is a deficient number, since it is larger than the sum of its proper divisors (71625553).

227121455 is a wasteful number, since it uses less digits than its factorization.

227121455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19798.

The product of its digits is 5600, while the sum is 29.

The square root of 227121455 is about 15070.5492600635. The cubic root of 227121455 is about 610.1257959679.

The spelling of 227121455 in words is "two hundred twenty-seven million, one hundred twenty-one thousand, four hundred fifty-five".