242185147 has 16 divisors (see below), whose sum is σ = 258266880. Its totient is φ = 226607392.

The previous prime is 242185129. The next prime is 242185171. The reversal of 242185147 is 741581242.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242185147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242185117) 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, 429888 + ... + 430450.

It is an arithmetic number, because the mean of its divisors is an integer number (16141680).

Almost surely, 2^242185147 is an apocalyptic number.

242185147 is a deficient number, since it is larger than the sum of its proper divisors (16081733).

242185147 is a wasteful number, since it uses less digits than its factorization.

242185147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962.

The product of its digits is 17920, while the sum is 34.

The square root of 242185147 is about 15562.2988982991. The cubic root of 242185147 is about 623.3268503493.

The spelling of 242185147 in words is "two hundred forty-two million, one hundred eighty-five thousand, one hundred forty-seven".