213090041 has 2 divisors, whose sum is σ = 213090042. Its totient is φ = 213090040.

The previous prime is 213090037. The next prime is 213090049. The reversal of 213090041 is 140090312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138768400 + 74321641 = 11780^2 + 8621^2 .

It is a cyclic number.

It is not a de Polignac number, because 213090041 - 2² = 213090037 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 213089995 and 213090022.

It is not a weakly prime, because it can be changed into another prime (213090049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106545020 + 106545021.

It is an arithmetic number, because the mean of its divisors is an integer number (106545021).

Almost surely, 2^213090041 is an apocalyptic number.

It is an amenable number.

213090041 is a deficient number, since it is larger than the sum of its proper divisors (1).

213090041 is an equidigital number, since it uses as much as digits as its factorization.

213090041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 213090041 is about 14597.6039472237. The cubic root of 213090041 is about 597.2934024267.

The spelling of 213090041 in words is "two hundred thirteen million, ninety thousand, forty-one".