242377213 has 8 divisors (see below), whose sum is σ = 261766008. Its totient is φ = 223094784.

The previous prime is 242377183. The next prime is 242377229. The reversal of 242377213 is 312773242.

It can be written as a sum of positive squares in 4 ways, for example, as 12945604 + 229431609 = 3598^2 + 15147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242377213 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 (242377253) 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 7 ways as a sum of consecutive naturals, for example, 21820 + ... + 30997.

It is an arithmetic number, because the mean of its divisors is an integer number (32720751).

Almost surely, 2^242377213 is an apocalyptic number.

It is an amenable number.

242377213 is a deficient number, since it is larger than the sum of its proper divisors (19388795).

242377213 is a wasteful number, since it uses less digits than its factorization.

242377213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53183.

The product of its digits is 14112, while the sum is 31.

The square root of 242377213 is about 15568.4685502460. The cubic root of 242377213 is about 623.4915841795.

The spelling of 242377213 in words is "two hundred forty-two million, three hundred seventy-seven thousand, two hundred thirteen".