231607 has 2 divisors, whose sum is σ = 231608. Its totient is φ = 231606.

The previous prime is 231599. The next prime is 231611. The reversal of 231607 is 706132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231607 - 2³ = 231599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115803 + 115804.

It is an arithmetic number, because the mean of its divisors is an integer number (115804).

2²³¹⁶⁰⁷ is an apocalyptic number.

231607 is a deficient number, since it is larger than the sum of its proper divisors (1).

231607 is an equidigital number, since it uses as much as digits as its factorization.

231607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 231607 is about 481.2556493175. The cubic root of 231607 is about 61.4116209122.

Adding to 231607 its reverse (706132), we get a palindrome (937739).

It can be divided in two parts, 231 and 607, that added together give a palindrome (838).

The spelling of 231607 in words is "two hundred thirty-one thousand, six hundred seven".