242146783 has 4 divisors (see below), whose sum is σ = 252674928. Its totient is φ = 231618640.

The previous prime is 242146763. The next prime is 242146787. The reversal of 242146783 is 387641242.

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 242146783 - 2²¹ = 240049631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242146787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5264038 + ... + 5264083.

It is an arithmetic number, because the mean of its divisors is an integer number (63168732).

Almost surely, 2^242146783 is an apocalyptic number.

242146783 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

242146783 is a deficient number, since it is larger than the sum of its proper divisors (10528145).

242146783 is a wasteful number, since it uses less digits than its factorization.

242146783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528144.

The product of its digits is 64512, while the sum is 37.

The square root of 242146783 is about 15561.0662552410. The cubic root of 242146783 is about 623.2939353469.

The spelling of 242146783 in words is "two hundred forty-two million, one hundred forty-six thousand, seven hundred eighty-three".