242746619 has 2 divisors, whose sum is σ = 242746620. Its totient is φ = 242746618.

The previous prime is 242746613. The next prime is 242746639. The reversal of 242746619 is 916647242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242746619 is a prime.

It is a super-2 number, since 2×242746619² = 117851842071862322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242746613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121373309 + 121373310.

It is an arithmetic number, because the mean of its divisors is an integer number (121373310).

Almost surely, 2^242746619 is an apocalyptic number.

242746619 is a deficient number, since it is larger than the sum of its proper divisors (1).

242746619 is an equidigital number, since it uses as much as digits as its factorization.

242746619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 242746619 is about 15580.3279490517. The cubic root of 242746619 is about 623.8081769505.

The spelling of 242746619 in words is "two hundred forty-two million, seven hundred forty-six thousand, six hundred nineteen".