242551101 has 16 divisors (see below), whose sum is σ = 348566400. Its totient is φ = 149138880.

The previous prime is 242551081. The next prime is 242551129. The reversal of 242551101 is 101155242.

It is not a de Polignac number, because 242551101 - 2⁵ = 242551069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242551171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74416 + ... + 77606.

It is an arithmetic number, because the mean of its divisors is an integer number (21785400).

Almost surely, 2^242551101 is an apocalyptic number.

It is an amenable number.

242551101 is a deficient number, since it is larger than the sum of its proper divisors (106015299).

242551101 is a wasteful number, since it uses less digits than its factorization.

242551101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 242551101 is about 15574.0521701964. The cubic root of 242551101 is about 623.6406518061.

The spelling of 242551101 in words is "two hundred forty-two million, five hundred fifty-one thousand, one hundred one".