234159809 has 6 divisors (see below), whose sum is σ = 253557846. Its totient is φ = 216147360.

The previous prime is 234159797. The next prime is 234159823. The reversal of 234159809 is 908951432.

It can be written as a sum of positive squares in 3 ways, for example, as 222784 + 233937025 = 472^2 + 15295^2 .

It is not a de Polignac number, because 234159809 - 2²⁴ = 217382593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234159859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 692612 + ... + 692949.

It is an arithmetic number, because the mean of its divisors is an integer number (42259641).

Almost surely, 2^234159809 is an apocalyptic number.

It is an amenable number.

234159809 is a deficient number, since it is larger than the sum of its proper divisors (19398037).

234159809 is a wasteful number, since it uses less digits than its factorization.

234159809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385587 (or 1385574 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 234159809 is about 15302.2811698126. The cubic root of 234159809 is about 616.3642651078.

The spelling of 234159809 in words is "two hundred thirty-four million, one hundred fifty-nine thousand, eight hundred nine".