100215019 has 2 divisors, whose sum is σ = 100215020. Its totient is φ = 100215018.

The previous prime is 100214977. The next prime is 100215047. The reversal of 100215019 is 910512001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100215019 is a prime.

It is a super-2 number, since 2×100215019² = 20086100066340722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 100214987 and 100215005.

It is not a weakly prime, because it can be changed into another prime (100213019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50107509 + 50107510.

It is an arithmetic number, because the mean of its divisors is an integer number (50107510).

Almost surely, 2^100215019 is an apocalyptic number.

100215019 is a deficient number, since it is larger than the sum of its proper divisors (1).

100215019 is an equidigital number, since it uses as much as digits as its factorization.

100215019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 100215019 is about 10010.7451770585. The cubic root of 100215019 is about 464.4913218029.

The spelling of 100215019 in words is "one hundred million, two hundred fifteen thousand, nineteen".