242493513 has 4 divisors (see below), whose sum is σ = 323324688. Its totient is φ = 161662340.

The previous prime is 242493487. The next prime is 242493521. The reversal of 242493513 is 315394242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242493513 - 2⁹ = 242493001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242493533) 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, 40415583 + ... + 40415588.

It is an arithmetic number, because the mean of its divisors is an integer number (80831172).

Almost surely, 2^242493513 is an apocalyptic number.

It is an amenable number.

242493513 is a deficient number, since it is larger than the sum of its proper divisors (80831175).

242493513 is an equidigital number, since it uses as much as digits as its factorization.

242493513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80831174.

The product of its digits is 25920, while the sum is 33.

The square root of 242493513 is about 15572.2032159871. The cubic root of 242493513 is about 623.5912916776.

The spelling of 242493513 in words is "two hundred forty-two million, four hundred ninety-three thousand, five hundred thirteen".