1016228557 has 2 divisors, whose sum is σ = 1016228558. Its totient is φ = 1016228556.

The previous prime is 1016228537. The next prime is 1016228621. The reversal of 1016228557 is 7558226101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 985080996 + 31147561 = 31386^2 + 5581^2 .

It is a cyclic number.

It is not a de Polignac number, because 1016228557 - 2¹¹ = 1016226509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1016228537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508114278 + 508114279.

It is an arithmetic number, because the mean of its divisors is an integer number (508114279).

Almost surely, 2^1016228557 is an apocalyptic number.

It is an amenable number.

1016228557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016228557 is an equidigital number, since it uses as much as digits as its factorization.

1016228557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 1016228557 is about 31878.3399348209. The cubic root of 1016228557 is about 1005.3805171137.

The spelling of 1016228557 in words is "one billion, sixteen million, two hundred twenty-eight thousand, five hundred fifty-seven".