228051415 has 4 divisors (see below), whose sum is σ = 273661704. Its totient is φ = 182441128.

The previous prime is 228051391. The next prime is 228051419. The reversal of 228051415 is 514150822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228051415 - 2¹⁵ = 228018647 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 (228051419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22805137 + ... + 22805146.

It is an arithmetic number, because the mean of its divisors is an integer number (68415426).

Almost surely, 2^228051415 is an apocalyptic number.

228051415 is a deficient number, since it is larger than the sum of its proper divisors (45610289).

228051415 is an equidigital number, since it uses as much as digits as its factorization.

228051415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45610288.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 228051415 is about 15101.3712953493. The cubic root of 228051415 is about 610.9573920499.

The spelling of 228051415 in words is "two hundred twenty-eight million, fifty-one thousand, four hundred fifteen".