242951313947 has 4 divisors (see below), whose sum is σ = 242980625256. Its totient is φ = 242922002640.

The previous prime is 242951313893. The next prime is 242951313967. The reversal of 242951313947 is 749313159242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242951313947 - 2²⁸ = 242682878491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242951313895 and 242951313904.

It is not an unprimeable number, because it can be changed into a prime (242951313967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14643218 + ... + 14659799.

It is an arithmetic number, because the mean of its divisors is an integer number (60745156314).

Almost surely, 2^242951313947 is an apocalyptic number.

242951313947 is a deficient number, since it is larger than the sum of its proper divisors (29311309).

242951313947 is an equidigital number, since it uses as much as digits as its factorization.

242951313947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29311308.

The product of its digits is 1632960, while the sum is 50.

The spelling of 242951313947 in words is "two hundred forty-two billion, nine hundred fifty-one million, three hundred thirteen thousand, nine hundred forty-seven".