101310225 has 48 divisors (see below), whose sum is σ = 178738560. Its totient is φ = 50457600.

The previous prime is 101310217. The next prime is 101310227. The reversal of 101310225 is 522013101.

It is not a de Polignac number, because 101310225 - 2³ = 101310217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (101310227) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 230556 + ... + 230994.

It is an arithmetic number, because the mean of its divisors is an integer number (3723720).

Almost surely, 2^101310225 is an apocalyptic number.

101310225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101310225 is a deficient number, since it is larger than the sum of its proper divisors (77428335).

101310225 is a wasteful number, since it uses less digits than its factorization.

101310225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 101310225 is about 10065.2980581799. The cubic root of 101310225 is about 466.1772689730.

Adding to 101310225 its reverse (522013101), we get a palindrome (623323326).

The spelling of 101310225 in words is "one hundred one million, three hundred ten thousand, two hundred twenty-five".