234542505 has 16 divisors (see below), whose sum is σ = 376357824. Its totient is φ = 124726080.

The previous prime is 234542471. The next prime is 234542507. The reversal of 234542505 is 505245432.

It is not a de Polignac number, because 234542505 - 2¹¹ = 234540457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234542507) 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, 17326 + ... + 27735.

It is an arithmetic number, because the mean of its divisors is an integer number (23522364).

Almost surely, 2^234542505 is an apocalyptic number.

It is an amenable number.

234542505 is a deficient number, since it is larger than the sum of its proper divisors (141815319).

234542505 is a wasteful number, since it uses less digits than its factorization.

234542505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45416.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 234542505 is about 15314.7806056763. The cubic root of 234542505 is about 616.6998646197.

Adding to 234542505 its reverse (505245432), we get a palindrome (739787937).

It can be divided in two parts, 2345 and 42505, that added together give a triangular number (44850 = T₂₉₉).

The spelling of 234542505 in words is "two hundred thirty-four million, five hundred forty-two thousand, five hundred five".