206124631 has 2 divisors, whose sum is σ = 206124632. Its totient is φ = 206124630.

The previous prime is 206124617. The next prime is 206124637. The reversal of 206124631 is 136421602.

206124631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206124631 - 2⁹ = 206124119 is a prime.

It is a super-2 number, since 2×206124631² = 84974727009772322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206124596 and 206124605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206124637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103062315 + 103062316.

It is an arithmetic number, because the mean of its divisors is an integer number (103062316).

Almost surely, 2^206124631 is an apocalyptic number.

206124631 is a deficient number, since it is larger than the sum of its proper divisors (1).

206124631 is an equidigital number, since it uses as much as digits as its factorization.

206124631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 206124631 is about 14357.0411645297. The cubic root of 206124631 is about 590.7131384418.

The spelling of 206124631 in words is "two hundred six million, one hundred twenty-four thousand, six hundred thirty-one".