242501261 has 8 divisors (see below), whose sum is σ = 245313600. Its totient is φ = 239695488.

The previous prime is 242501249. The next prime is 242501263. The reversal of 242501261 is 162105242.

It is a happy number.

242501261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242501261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242501263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134810 + ... + 136596.

It is an arithmetic number, because the mean of its divisors is an integer number (30664200).

Almost surely, 2^242501261 is an apocalyptic number.

It is an amenable number.

242501261 is a deficient number, since it is larger than the sum of its proper divisors (2812339).

242501261 is a wasteful number, since it uses less digits than its factorization.

242501261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 242501261 is about 15572.4519906147. The cubic root of 242501261 is about 623.5979331389.

The spelling of 242501261 in words is "two hundred forty-two million, five hundred one thousand, two hundred sixty-one".