213245413 has 2 divisors, whose sum is σ = 213245414. Its totient is φ = 213245412.

The previous prime is 213245309. The next prime is 213245423. The reversal of 213245413 is 314542312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203404644 + 9840769 = 14262^2 + 3137^2 .

It is a cyclic number.

It is not a de Polignac number, because 213245413 - 2¹³ = 213237221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213245423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106622706 + 106622707.

It is an arithmetic number, because the mean of its divisors is an integer number (106622707).

Almost surely, 2^213245413 is an apocalyptic number.

It is an amenable number.

213245413 is a deficient number, since it is larger than the sum of its proper divisors (1).

213245413 is an equidigital number, since it uses as much as digits as its factorization.

213245413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 25.

The square root of 213245413 is about 14602.9248097770. The cubic root of 213245413 is about 597.4385368871.

Adding to 213245413 its reverse (314542312), we get a palindrome (527787725).

The spelling of 213245413 in words is "two hundred thirteen million, two hundred forty-five thousand, four hundred thirteen".