227142557 has 2 divisors, whose sum is σ = 227142558. Its totient is φ = 227142556.

The previous prime is 227142547. The next prime is 227142563. The reversal of 227142557 is 755241722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133033156 + 94109401 = 11534^2 + 9701^2 .

It is a cyclic number.

It is not a de Polignac number, because 227142557 - 2¹⁰ = 227141533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227142527) 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 as a sum of consecutive naturals, namely, 113571278 + 113571279.

It is an arithmetic number, because the mean of its divisors is an integer number (113571279).

Almost surely, 2^227142557 is an apocalyptic number.

It is an amenable number.

227142557 is a deficient number, since it is larger than the sum of its proper divisors (1).

227142557 is an equidigital number, since it uses as much as digits as its factorization.

227142557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39200, while the sum is 35.

The square root of 227142557 is about 15071.2493509994. The cubic root of 227142557 is about 610.1446911090.

The spelling of 227142557 in words is "two hundred twenty-seven million, one hundred forty-two thousand, five hundred fifty-seven".