100040641 has 2 divisors, whose sum is σ = 100040642. Its totient is φ = 100040640.

The previous prime is 100040599. The next prime is 100040653. The reversal of 100040641 is 146040001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90250000 + 9790641 = 9500^2 + 3129^2 .

It is a cyclic number.

It is not a de Polignac number, because 100040641 - 2⁷ = 100040513 is a prime.

It is not a weakly prime, because it can be changed into another prime (100040741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50020320 + 50020321.

It is an arithmetic number, because the mean of its divisors is an integer number (50020321).

Almost surely, 2^100040641 is an apocalyptic number.

It is an amenable number.

100040641 is a deficient number, since it is larger than the sum of its proper divisors (1).

100040641 is an equidigital number, since it uses as much as digits as its factorization.

100040641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 100040641 is about 10002.0318435806. The cubic root of 100040641 is about 464.2217544488.

Adding to 100040641 its reverse (146040001), we get a palindrome (246080642).

The spelling of 100040641 in words is "one hundred million, forty thousand, six hundred forty-one".