1205458231 has 2 divisors, whose sum is σ = 1205458232. Its totient is φ = 1205458230.

The previous prime is 1205458207. The next prime is 1205458279. The reversal of 1205458231 is 1328545021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1205458231 - 2¹¹ = 1205456183 is a prime.

It is a super-2 number, since 2×1205458231² = 2906259093371298722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1205458193 and 1205458202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1205458931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602729115 + 602729116.

It is an arithmetic number, because the mean of its divisors is an integer number (602729116).

Almost surely, 2^1205458231 is an apocalyptic number.

1205458231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205458231 is an equidigital number, since it uses as much as digits as its factorization.

1205458231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 1205458231 is about 34719.7095465962. The cubic root of 1205458231 is about 1064.2673091620.

The spelling of 1205458231 in words is "one billion, two hundred five million, four hundred fifty-eight thousand, two hundred thirty-one".