101140040 has 64 divisors (see below), whose sum is σ = 242956800. Its totient is φ = 37780992.

The previous prime is 101140027. The next prime is 101140063. The reversal of 101140040 is 40041101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54569 + ... + 56391.

It is an arithmetic number, because the mean of its divisors is an integer number (3796200).

Almost surely, 2^101140040 is an apocalyptic number.

101140040 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 101140040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121478400).

101140040 is an abundant number, since it is smaller than the sum of its proper divisors (141816760).

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

101140040 is a wasteful number, since it uses less digits than its factorization.

101140040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1922 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 101140040 is about 10056.8404581161. The cubic root of 101140040 is about 465.9160882146.

Adding to 101140040 its reverse (40041101), we get a palindrome (141181141).

The spelling of 101140040 in words is "one hundred one million, one hundred forty thousand, forty".