100140621 has 16 divisors (see below), whose sum is σ = 160627200. Its totient is φ = 54211248.

The previous prime is 100140587. The next prime is 100140629. The reversal of 100140621 is 126041001.

It is not a de Polignac number, because 100140621 - 2⁷ = 100140493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100140621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100140629) 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 15 ways as a sum of consecutive naturals, for example, 125091 + ... + 125888.

It is an arithmetic number, because the mean of its divisors is an integer number (10039200).

Almost surely, 2^100140621 is an apocalyptic number.

It is an amenable number.

100140621 is a deficient number, since it is larger than the sum of its proper divisors (60486579).

100140621 is a wasteful number, since it uses less digits than its factorization.

100140621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251008.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 100140621 is about 10007.0285799532. The cubic root of 100140621 is about 464.3763497464.

Adding to 100140621 its reverse (126041001), we get a palindrome (226181622).

The spelling of 100140621 in words is "one hundred million, one hundred forty thousand, six hundred twenty-one".