242120961 has 16 divisors (see below), whose sum is σ = 359089920. Its totient is φ = 161237520.

The previous prime is 242120951. The next prime is 242120981. The reversal of 242120961 is 169021242.

242120961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242120961 - 2⁷ = 242120833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (242120911) 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, 23176 + ... + 31958.

It is an arithmetic number, because the mean of its divisors is an integer number (22443120).

Almost surely, 2^242120961 is an apocalyptic number.

It is an amenable number.

242120961 is a deficient number, since it is larger than the sum of its proper divisors (116968959).

242120961 is a wasteful number, since it uses less digits than its factorization.

242120961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9813 (or 9807 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 242120961 is about 15560.2365341919. The cubic root of 242120961 is about 623.2717789948.

The spelling of 242120961 in words is "two hundred forty-two million, one hundred twenty thousand, nine hundred sixty-one".