1016226557 has 2 divisors, whose sum is σ = 1016226558. Its totient is φ = 1016226556.

The previous prime is 1016226553. The next prime is 1016226569. The reversal of 1016226557 is 7556226101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866066041 + 150160516 = 29429^2 + 12254^2 .

It is an emirp because it is prime and its reverse (7556226101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1016226557 - 2² = 1016226553 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1016226551) 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, 508113278 + 508113279.

It is an arithmetic number, because the mean of its divisors is an integer number (508113279).

Almost surely, 2^1016226557 is an apocalyptic number.

It is an amenable number.

1016226557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016226557 is an equidigital number, since it uses as much as digits as its factorization.

1016226557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 1016226557 is about 31878.3085655434. The cubic root of 1016226557 is about 1005.3798575631.

The spelling of 1016226557 in words is "one billion, sixteen million, two hundred twenty-six thousand, five hundred fifty-seven".