242105545 has 8 divisors (see below), whose sum is σ = 316938240. Its totient is φ = 176076720.

The previous prime is 242105531. The next prime is 242105557. The reversal of 242105545 is 545501242.

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

It is not a de Polignac number, because 242105545 - 2⁷ = 242105417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200905 + ... + 2201014.

It is an arithmetic number, because the mean of its divisors is an integer number (39617280).

Almost surely, 2^242105545 is an apocalyptic number.

It is an amenable number.

242105545 is a deficient number, since it is larger than the sum of its proper divisors (74832695).

242105545 is a wasteful number, since it uses less digits than its factorization.

242105545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401935.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 242105545 is about 15559.7411610862. The cubic root of 242105545 is about 623.2585506734.

Adding to 242105545 its reverse (545501242), we get a palindrome (787606787).

It can be divided in two parts, 2421055 and 45, that added together give a triangular number (2421100 = T₂₂₀₀).

The spelling of 242105545 in words is "two hundred forty-two million, one hundred five thousand, five hundred forty-five".