100125740 has 72 divisors (see below), whose sum is σ = 248473008. Its totient is φ = 33596160.

The previous prime is 100125721. The next prime is 100125749. The reversal of 100125740 is 47521001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (100125749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35834 + ... + 38526.

It is an arithmetic number, because the mean of its divisors is an integer number (3451014).

Almost surely, 2^100125740 is an apocalyptic number.

100125740 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 100125740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124236504).

100125740 is an abundant number, since it is smaller than the sum of its proper divisors (148347268).

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

100125740 is a wasteful number, since it uses less digits than its factorization.

100125740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 100125740 is about 10006.2850249231. The cubic root of 100125740 is about 464.3533463381.

Adding to 100125740 its reverse (47521001), we get a palindrome (147646741).

The spelling of 100125740 in words is "one hundred million, one hundred twenty-five thousand, seven hundred forty".