653342231 has 2 divisors, whose sum is σ = 653342232. Its totient is φ = 653342230.

The previous prime is 653342201. The next prime is 653342297. The reversal of 653342231 is 132243356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 653342231 - 2⁶ = 653342167 is a prime.

It is a super-2 number, since 2×653342231² = 853712141616114722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 653342194 and 653342203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (653342201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326671115 + 326671116.

It is an arithmetic number, because the mean of its divisors is an integer number (326671116).

Almost surely, 2^653342231 is an apocalyptic number.

653342231 is a deficient number, since it is larger than the sum of its proper divisors (1).

653342231 is an equidigital number, since it uses as much as digits as its factorization.

653342231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 29.

The square root of 653342231 is about 25560.5600681988. The cubic root of 653342231 is about 867.7212710317.

Adding to 653342231 its reverse (132243356), we get a palindrome (785585587).

The spelling of 653342231 in words is "six hundred fifty-three million, three hundred forty-two thousand, two hundred thirty-one".