210030929 has 2 divisors, whose sum is σ = 210030930. Its totient is φ = 210030928.

The previous prime is 210030923. The next prime is 210031007. The reversal of 210030929 is 929030012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194546704 + 15484225 = 13948^2 + 3935^2 .

It is a cyclic number.

It is not a de Polignac number, because 210030929 - 2⁴ = 210030913 is a prime.

It is a super-2 number, since 2×210030929² = 88225982273206082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210030898 and 210030907.

It is not a weakly prime, because it can be changed into another prime (210030923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105015464 + 105015465.

It is an arithmetic number, because the mean of its divisors is an integer number (105015465).

Almost surely, 2^210030929 is an apocalyptic number.

It is an amenable number.

210030929 is a deficient number, since it is larger than the sum of its proper divisors (1).

210030929 is an equidigital number, since it uses as much as digits as its factorization.

210030929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 210030929 is about 14492.4438587838. The cubic root of 210030929 is about 594.4213747267.

The spelling of 210030929 in words is "two hundred ten million, thirty thousand, nine hundred twenty-nine".