100842619 has 2 divisors, whose sum is σ = 100842620. Its totient is φ = 100842618.

The previous prime is 100842617. The next prime is 100842647. The reversal of 100842619 is 916248001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100842619 - 2¹ = 100842617 is a prime.

It is a super-2 number, since 2×100842619² = 20338467613558322, which contains 22 as substring.

Together with 100842617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (100842617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50421309 + 50421310.

It is an arithmetic number, because the mean of its divisors is an integer number (50421310).

Almost surely, 2^100842619 is an apocalyptic number.

100842619 is a deficient number, since it is larger than the sum of its proper divisors (1).

100842619 is an equidigital number, since it uses as much as digits as its factorization.

100842619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 100842619 is about 10042.0425711107. The cubic root of 100842619 is about 465.4589356546.

The spelling of 100842619 in words is "one hundred million, eight hundred forty-two thousand, six hundred nineteen".