101226557 has 2 divisors, whose sum is σ = 101226558. Its totient is φ = 101226556.

The previous prime is 101226533. The next prime is 101226569. The reversal of 101226557 is 755622101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101082916 + 143641 = 10054^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 101226557 - 2¹⁴ = 101210173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101226157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50613278 + 50613279.

It is an arithmetic number, because the mean of its divisors is an integer number (50613279).

Almost surely, 2^101226557 is an apocalyptic number.

It is an amenable number.

101226557 is a deficient number, since it is larger than the sum of its proper divisors (1).

101226557 is an equidigital number, since it uses as much as digits as its factorization.

101226557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 101226557 is about 10061.1409392772. The cubic root of 101226557 is about 466.0489013379.

Adding to 101226557 its reverse (755622101), we get a palindrome (856848658).

The spelling of 101226557 in words is "one hundred one million, two hundred twenty-six thousand, five hundred fifty-seven".