101245553 has 2 divisors, whose sum is σ = 101245554. Its totient is φ = 101245552.

The previous prime is 101245549. The next prime is 101245559. The reversal of 101245553 is 355542101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62220544 + 39025009 = 7888^2 + 6247^2 .

It is a cyclic number.

It is not a de Polignac number, because 101245553 - 2² = 101245549 is a prime.

It is a Chen prime.

It is equal to p_5829020 and since 101245553 and 5829020 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (101245559) 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, 50622776 + 50622777.

It is an arithmetic number, because the mean of its divisors is an integer number (50622777).

Almost surely, 2^101245553 is an apocalyptic number.

It is an amenable number.

101245553 is a deficient number, since it is larger than the sum of its proper divisors (1).

101245553 is an equidigital number, since it uses as much as digits as its factorization.

101245553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 101245553 is about 10062.0849231161. The cubic root of 101245553 is about 466.0780521571.

Adding to 101245553 its reverse (355542101), we get a palindrome (456787654).

The spelling of 101245553 in words is "one hundred one million, two hundred forty-five thousand, five hundred fifty-three".