101243245 has 8 divisors (see below), whose sum is σ = 128638584. Its totient is φ = 76230144.

The previous prime is 101243239. The next prime is 101243299. The reversal of 101243245 is 542342101.

It can be written as a sum of positive squares in 4 ways, for example, as 7502121 + 93741124 = 2739^2 + 9682^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101243245 - 2³ = 101243237 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 595464 + ... + 595633.

It is an arithmetic number, because the mean of its divisors is an integer number (16079823).

Almost surely, 2^101243245 is an apocalyptic number.

It is an amenable number.

101243245 is a deficient number, since it is larger than the sum of its proper divisors (27395339).

101243245 is a wasteful number, since it uses less digits than its factorization.

101243245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191119.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 101243245 is about 10061.9702345018. The cubic root of 101243245 is about 466.0745105487.

Adding to 101243245 its reverse (542342101), we get a palindrome (643585346).

The spelling of 101243245 in words is "one hundred one million, two hundred forty-three thousand, two hundred forty-five".