242542201445 has 4 divisors (see below), whose sum is σ = 291050641740. Its totient is φ = 194033761152.

The previous prime is 242542201387. The next prime is 242542201477. The reversal of 242542201445 is 544102245242.

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 160795386049 + 81746815396 = 400993^2 + 285914^2 .

It is a cyclic number.

It is not a de Polignac number, because 242542201445 - 2⁶ = 242542201381 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 24254220140 + ... + 24254220149.

It is an arithmetic number, because the mean of its divisors is an integer number (72762660435).

Almost surely, 2^242542201445 is an apocalyptic number.

It is an amenable number.

242542201445 is a deficient number, since it is larger than the sum of its proper divisors (48508440295).

242542201445 is an equidigital number, since it uses as much as digits as its factorization.

242542201445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48508440294.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 242542201445 its reverse (544102245242), we get a palindrome (786644446687).

The spelling of 242542201445 in words is "two hundred forty-two billion, five hundred forty-two million, two hundred one thousand, four hundred forty-five".