231141909 has 8 divisors (see below), whose sum is σ = 308483392. Its totient is φ = 153947520.

The previous prime is 231141907. The next prime is 231141941. The reversal of 231141909 is 909141132.

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

It is not a de Polignac number, because 231141909 - 2¹ = 231141907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231141901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33052 + ... + 39429.

It is an arithmetic number, because the mean of its divisors is an integer number (38560424).

Almost surely, 2^231141909 is an apocalyptic number.

It is an amenable number.

231141909 is a deficient number, since it is larger than the sum of its proper divisors (77341483).

231141909 is a wasteful number, since it uses less digits than its factorization.

231141909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73547.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 231141909 is about 15203.3519001568. The cubic root of 231141909 is about 613.7048638692.

The spelling of 231141909 in words is "two hundred thirty-one million, one hundred forty-one thousand, nine hundred nine".