101143025 has 6 divisors (see below), whose sum is σ = 125417382. Its totient is φ = 80914400.

The previous prime is 101143019. The next prime is 101143057. The reversal of 101143025 is 520341101.

It can be written as a sum of positive squares in 3 ways, for example, as 34492129 + 66650896 = 5873^2 + 8164^2 .

It is not a de Polignac number, because 101143025 - 2¹⁰ = 101142001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101142994 and 101143012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2022836 + ... + 2022885.

It is an arithmetic number, because the mean of its divisors is an integer number (20902897).

Almost surely, 2^101143025 is an apocalyptic number.

It is an amenable number.

101143025 is a deficient number, since it is larger than the sum of its proper divisors (24274357).

101143025 is an equidigital number, since it uses as much as digits as its factorization.

101143025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045731 (or 4045726 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 101143025 is about 10056.9888634720. The cubic root of 101143025 is about 465.9206717796.

Adding to 101143025 its reverse (520341101), we get a palindrome (621484126).

The spelling of 101143025 in words is "one hundred one million, one hundred forty-three thousand, twenty-five".