101245505 has 8 divisors (see below), whose sum is σ = 124778472. Its totient is φ = 78807168.

The previous prime is 101245499. The next prime is 101245513. The reversal of 101245505 is 505542101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51782416 + 49463089 = 7196^2 + 7033^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101245505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273452 + ... + 273821.

It is an arithmetic number, because the mean of its divisors is an integer number (15597309).

Almost surely, 2^101245505 is an apocalyptic number.

It is an amenable number.

101245505 is a deficient number, since it is larger than the sum of its proper divisors (23532967).

101245505 is an equidigital number, since it uses as much as digits as its factorization.

101245505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547315.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 101245505 is about 10062.0825379242. The cubic root of 101245505 is about 466.0779785021.

Adding to 101245505 its reverse (505542101), we get a palindrome (606787606).

The spelling of 101245505 in words is "one hundred one million, two hundred forty-five thousand, five hundred five".