242573761 has 4 divisors (see below), whose sum is σ = 242829252. Its totient is φ = 242318272.

The previous prime is 242573717. The next prime is 242573797. The reversal of 242573761 is 167375242.

It is a happy number.

242573761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 149817600 + 92756161 = 12240^2 + 9631^2 .

It is a cyclic number.

It is not a de Polignac number, because 242573761 - 2¹⁷ = 242442689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242573761.

It is not an unprimeable number, because it can be changed into a prime (242577761) 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, 126316 + ... + 128221.

It is an arithmetic number, because the mean of its divisors is an integer number (60707313).

Almost surely, 2^242573761 is an apocalyptic number.

It is an amenable number.

242573761 is a deficient number, since it is larger than the sum of its proper divisors (255491).

242573761 is an equidigital number, since it uses as much as digits as its factorization.

242573761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255490.

The product of its digits is 70560, while the sum is 37.

The square root of 242573761 is about 15574.7796453112. The cubic root of 242573761 is about 623.6600721221.

The spelling of 242573761 in words is "two hundred forty-two million, five hundred seventy-three thousand, seven hundred sixty-one".