242106619 has 2 divisors, whose sum is σ = 242106620. Its totient is φ = 242106618.

The previous prime is 242106589. The next prime is 242106649. The reversal of 242106619 is 916601242.

It is a balanced prime because it is at equal distance from previous prime (242106589) and next prime (242106649).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242106619 is a prime.

It is a super-2 number, since 2×242106619² = 117231229927222322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242106649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121053309 + 121053310.

It is an arithmetic number, because the mean of its divisors is an integer number (121053310).

Almost surely, 2^242106619 is an apocalyptic number.

242106619 is a deficient number, since it is larger than the sum of its proper divisors (1).

242106619 is an equidigital number, since it uses as much as digits as its factorization.

242106619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 242106619 is about 15559.7756731902. The cubic root of 242106619 is about 623.2594722807.

The spelling of 242106619 in words is "two hundred forty-two million, one hundred six thousand, six hundred nineteen".