100042291 has 2 divisors, whose sum is σ = 100042292. Its totient is φ = 100042290.

The previous prime is 100042279. The next prime is 100042303. The reversal of 100042291 is 192240001.

It is a balanced prime because it is at equal distance from previous prime (100042279) and next prime (100042303).

It is an emirp because it is prime and its reverse (192240001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100042291 - 2⁵ = 100042259 is a prime.

It is not a weakly prime, because it can be changed into another prime (100042991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50021145 + 50021146.

It is an arithmetic number, because the mean of its divisors is an integer number (50021146).

Almost surely, 2^100042291 is an apocalyptic number.

100042291 is a deficient number, since it is larger than the sum of its proper divisors (1).

100042291 is an equidigital number, since it uses as much as digits as its factorization.

100042291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 100042291 is about 10002.1143264812. The cubic root of 100042291 is about 464.2243066172.

Adding to 100042291 its reverse (192240001), we get a palindrome (292282292).

The spelling of 100042291 in words is "one hundred million, forty-two thousand, two hundred ninety-one".