228761501 has 8 divisors (see below), whose sum is σ = 242642400. Its totient is φ = 215064720.

The previous prime is 228761453. The next prime is 228761513. The reversal of 228761501 is 105167822.

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

It is a cyclic number.

It is not a de Polignac number, because 228761501 - 2⁶ = 228761437 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 (228761521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43466 + ... + 48443.

It is an arithmetic number, because the mean of its divisors is an integer number (30330300).

Almost surely, 2^228761501 is an apocalyptic number.

It is an amenable number.

228761501 is a deficient number, since it is larger than the sum of its proper divisors (13880899).

228761501 is a wasteful number, since it uses less digits than its factorization.

228761501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92059.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 228761501 is about 15124.8636688071. The cubic root of 228761501 is about 611.5908497755.

The spelling of 228761501 in words is "two hundred twenty-eight million, seven hundred sixty-one thousand, five hundred one".