232144009 has 4 divisors (see below), whose sum is σ = 237806100. Its totient is φ = 226481920.

The previous prime is 232144007. The next prime is 232144019. The reversal of 232144009 is 900441232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22705225 + 209438784 = 4765^2 + 14472^2 .

It is a cyclic number.

It is not a de Polignac number, because 232144009 - 2¹ = 232144007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232144001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2830984 + ... + 2831065.

It is an arithmetic number, because the mean of its divisors is an integer number (59451525).

Almost surely, 2^232144009 is an apocalyptic number.

It is an amenable number.

232144009 is a deficient number, since it is larger than the sum of its proper divisors (5662091).

232144009 is an equidigital number, since it uses as much as digits as its factorization.

232144009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662090.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 232144009 is about 15236.2728053812. The cubic root of 232144009 is about 614.5904771372.

The spelling of 232144009 in words is "two hundred thirty-two million, one hundred forty-four thousand, nine".