242970619 has 2 divisors, whose sum is σ = 242970620. Its totient is φ = 242970618.

The previous prime is 242970617. The next prime is 242970649. The reversal of 242970619 is 916079242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242970619 - 2¹ = 242970617 is a prime.

It is a super-2 number, since 2×242970619² = 118069443394486322, which contains 22 as substring.

Together with 242970617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (242970617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121485309 + 121485310.

It is an arithmetic number, because the mean of its divisors is an integer number (121485310).

Almost surely, 2^242970619 is an apocalyptic number.

242970619 is a deficient number, since it is larger than the sum of its proper divisors (1).

242970619 is an equidigital number, since it uses as much as digits as its factorization.

242970619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 242970619 is about 15587.5148436176. The cubic root of 242970619 is about 623.9999957196. Note that the first 5 decimals are identical.

The spelling of 242970619 in words is "two hundred forty-two million, nine hundred seventy thousand, six hundred nineteen".