242055591 has 8 divisors (see below), whose sum is σ = 331463664. Its totient is φ = 157008960.

The previous prime is 242055559. The next prime is 242055599. The reversal of 242055591 is 195550242.

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

It is not a de Polignac number, because 242055591 - 2⁵ = 242055559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242055599) 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, 1090230 + ... + 1090451.

It is an arithmetic number, because the mean of its divisors is an integer number (41432958).

Almost surely, 2^242055591 is an apocalyptic number.

242055591 is a deficient number, since it is larger than the sum of its proper divisors (89408073).

242055591 is a wasteful number, since it uses less digits than its factorization.

242055591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180721.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 242055591 is about 15558.1358459168. The cubic root of 242055591 is about 623.2156817679.

The spelling of 242055591 in words is "two hundred forty-two million, fifty-five thousand, five hundred ninety-one".