234142985 has 8 divisors (see below), whose sum is σ = 295759680. Its totient is φ = 177455664.

The previous prime is 234142973. The next prime is 234142991. The reversal of 234142985 is 589241432.

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

It is a cyclic number.

It is not a de Polignac number, because 234142985 - 2⁸ = 234142729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232237 + ... + 1232426.

It is an arithmetic number, because the mean of its divisors is an integer number (36969960).

Almost surely, 2^234142985 is an apocalyptic number.

It is an amenable number.

234142985 is a deficient number, since it is larger than the sum of its proper divisors (61616695).

234142985 is a wasteful number, since it uses less digits than its factorization.

234142985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464687.

The product of its digits is 69120, while the sum is 38.

The square root of 234142985 is about 15301.7314379779. The cubic root of 234142985 is about 616.3495031655.

The spelling of 234142985 in words is "two hundred thirty-four million, one hundred forty-two thousand, nine hundred eighty-five".