213142927 has 2 divisors, whose sum is σ = 213142928. Its totient is φ = 213142926.

The previous prime is 213142859. The next prime is 213142933. The reversal of 213142927 is 729241312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213142927 - 2⁷ = 213142799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213145927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106571463 + 106571464.

It is an arithmetic number, because the mean of its divisors is an integer number (106571464).

Almost surely, 2^213142927 is an apocalyptic number.

213142927 is a deficient number, since it is larger than the sum of its proper divisors (1).

213142927 is an equidigital number, since it uses as much as digits as its factorization.

213142927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 213142927 is about 14599.4152965110. The cubic root of 213142927 is about 597.3428116590.

The spelling of 213142927 in words is "two hundred thirteen million, one hundred forty-two thousand, nine hundred twenty-seven".