228531701 has 2 divisors, whose sum is σ = 228531702. Its totient is φ = 228531700.

The previous prime is 228531671. The next prime is 228531757. The reversal of 228531701 is 107135822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150651076 + 77880625 = 12274^2 + 8825^2 .

It is a cyclic number.

It is not a de Polignac number, because 228531701 - 2⁶ = 228531637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228531301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114265850 + 114265851.

It is an arithmetic number, because the mean of its divisors is an integer number (114265851).

Almost surely, 2^228531701 is an apocalyptic number.

It is an amenable number.

228531701 is a deficient number, since it is larger than the sum of its proper divisors (1).

228531701 is an equidigital number, since it uses as much as digits as its factorization.

228531701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 228531701 is about 15117.2649973466. The cubic root of 228531701 is about 611.3859920766.

The spelling of 228531701 in words is "two hundred twenty-eight million, five hundred thirty-one thousand, seven hundred one".