101245500 has 144 divisors (see below), whose sum is σ = 323668800. Its totient is φ = 26640000.

The previous prime is 101245499. The next prime is 101245513. The reversal of 101245500 is 5542101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 in 47 ways as a sum of consecutive naturals, for example, 670425 + ... + 670575.

It is an arithmetic number, because the mean of its divisors is an integer number (2247700).

Almost surely, 2^101245500 is an apocalyptic number.

101245500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101245500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161834400).

101245500 is an abundant number, since it is smaller than the sum of its proper divisors (222423300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101245500 is a wasteful number, since it uses less digits than its factorization.

101245500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 101245500 is about 10062.0822894667. The cubic root of 101245500 is about 466.0779708297.

Adding to 101245500 its reverse (5542101), we get a palindrome (106787601).

The spelling of 101245500 in words is "one hundred one million, two hundred forty-five thousand, five hundred".