206148031 has 2 divisors, whose sum is σ = 206148032. Its totient is φ = 206148030.

The previous prime is 206148017. The next prime is 206148049. The reversal of 206148031 is 130841602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206148031 - 2¹⁵ = 206115263 is a prime.

It is a super-2 number, since 2×206148031² = 84994021370353922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206147987 and 206148005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206148071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103074015 + 103074016.

It is an arithmetic number, because the mean of its divisors is an integer number (103074016).

Almost surely, 2^206148031 is an apocalyptic number.

206148031 is a deficient number, since it is larger than the sum of its proper divisors (1).

206148031 is an equidigital number, since it uses as much as digits as its factorization.

206148031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 206148031 is about 14357.8560725479. The cubic root of 206148031 is about 590.7354908802.

Adding to 206148031 its reverse (130841602), we get a palindrome (336989633).

The spelling of 206148031 in words is "two hundred six million, one hundred forty-eight thousand, thirty-one".