101047500 has 150 divisors (see below), whose sum is σ = 330753500. Its totient is φ = 26892000.

The previous prime is 101047489. The next prime is 101047547. The reversal of 101047500 is 5740101.

It is a tau number, because it is divible by the number of its divisors (150).

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

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 49 ways as a sum of consecutive naturals, for example, 202251 + ... + 202749.

Almost surely, 2^101047500 is an apocalyptic number.

101047500 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 101047500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165376750).

101047500 is an abundant number, since it is smaller than the sum of its proper divisors (229706000).

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

101047500 is an equidigital number, since it uses as much as digits as its factorization.

101047500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 101047500 is about 10052.2385566599. The cubic root of 101047500 is about 465.7739452632.

Adding to 101047500 its reverse (5740101), we get a palindrome (106787601).

The spelling of 101047500 in words is "one hundred one million, forty-seven thousand, five hundred".