100140427 has 2 divisors, whose sum is σ = 100140428. Its totient is φ = 100140426.

The previous prime is 100140377. The next prime is 100140433. The reversal of 100140427 is 724041001.

It is a strong prime.

It is an emirp because it is prime and its reverse (724041001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100140427 - 2¹⁵ = 100107659 is a prime.

It is not a weakly prime, because it can be changed into another prime (100140437) 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 as a sum of consecutive naturals, namely, 50070213 + 50070214.

It is an arithmetic number, because the mean of its divisors is an integer number (50070214).

Almost surely, 2^100140427 is an apocalyptic number.

100140427 is a deficient number, since it is larger than the sum of its proper divisors (1).

100140427 is an equidigital number, since it uses as much as digits as its factorization.

100140427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 100140427 is about 10007.0188867614. The cubic root of 100140427 is about 464.3760498712.

Adding to 100140427 its reverse (724041001), we get a palindrome (824181428).

The spelling of 100140427 in words is "one hundred million, one hundred forty thousand, four hundred twenty-seven".