228531607 has 2 divisors, whose sum is σ = 228531608. Its totient is φ = 228531606.

The previous prime is 228531599. The next prime is 228531617. The reversal of 228531607 is 706135822.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228531607 - 2³ = 228531599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228531617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114265803 + 114265804.

It is an arithmetic number, because the mean of its divisors is an integer number (114265804).

Almost surely, 2^228531607 is an apocalyptic number.

228531607 is a deficient number, since it is larger than the sum of its proper divisors (1).

228531607 is an equidigital number, since it uses as much as digits as its factorization.

228531607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 228531607 is about 15117.2618883183. The cubic root of 228531607 is about 611.3859082511.

The spelling of 228531607 in words is "two hundred twenty-eight million, five hundred thirty-one thousand, six hundred seven".