231497017 has 4 divisors (see below), whose sum is σ = 231583860. Its totient is φ = 231410176.

The previous prime is 231497011. The next prime is 231497023. The reversal of 231497017 is 710794132.

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

It is an interprime number because it is at equal distance from previous prime (231497011) and next prime (231497023).

It can be written as a sum of positive squares in 2 ways, for example, as 186486336 + 45010681 = 13656^2 + 6709^2 .

It is a cyclic number.

It is not a de Polignac number, because 231497017 - 2¹¹ = 231494969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231497011) 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, 39292 + ... + 44797.

It is an arithmetic number, because the mean of its divisors is an integer number (57895965).

Almost surely, 2^231497017 is an apocalyptic number.

It is an amenable number.

231497017 is a deficient number, since it is larger than the sum of its proper divisors (86843).

231497017 is an equidigital number, since it uses as much as digits as its factorization.

231497017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86842.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 231497017 is about 15215.0260269248. The cubic root of 231497017 is about 614.0189854676.

The spelling of 231497017 in words is "two hundred thirty-one million, four hundred ninety-seven thousand, seventeen".