242061751 has 4 divisors (see below), whose sum is σ = 244458504. Its totient is φ = 239665000.

The previous prime is 242061731. The next prime is 242061763. The reversal of 242061751 is 157160242.

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 242061751 - 2²⁵ = 208507319 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 (242061731) 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, 1198225 + ... + 1198426.

It is an arithmetic number, because the mean of its divisors is an integer number (61114626).

Almost surely, 2^242061751 is an apocalyptic number.

242061751 is a deficient number, since it is larger than the sum of its proper divisors (2396753).

242061751 is a wasteful number, since it uses less digits than its factorization.

242061751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396752.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 242061751 is about 15558.3338118193. Note that the first 3 decimals coincide. The cubic root of 242061751 is about 623.2209683992.

The spelling of 242061751 in words is "two hundred forty-two million, sixty-one thousand, seven hundred fifty-one".