213099127 has 2 divisors, whose sum is σ = 213099128. Its totient is φ = 213099126.

The previous prime is 213099121. The next prime is 213099143. The reversal of 213099127 is 721990312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213099127 - 2³ = 213099119 is a prime.

It is a super-2 number, since 2×213099127² = 90822475856324258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213099092 and 213099101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213099121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106549563 + 106549564.

It is an arithmetic number, because the mean of its divisors is an integer number (106549564).

Almost surely, 2^213099127 is an apocalyptic number.

213099127 is a deficient number, since it is larger than the sum of its proper divisors (1).

213099127 is an equidigital number, since it uses as much as digits as its factorization.

213099127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 213099127 is about 14597.9151593644. The cubic root of 213099127 is about 597.3018916874.

The spelling of 213099127 in words is "two hundred thirteen million, ninety-nine thousand, one hundred twenty-seven".