213523049 has 2 divisors, whose sum is σ = 213523050. Its totient is φ = 213523048.

The previous prime is 213523033. The next prime is 213523081. The reversal of 213523049 is 940325312.

213523049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193210000 + 20313049 = 13900^2 + 4507^2 .

It is a cyclic number.

It is not a de Polignac number, because 213523049 - 2⁴ = 213523033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (213520049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106761524 + 106761525.

It is an arithmetic number, because the mean of its divisors is an integer number (106761525).

Almost surely, 2^213523049 is an apocalyptic number.

It is an amenable number.

213523049 is a deficient number, since it is larger than the sum of its proper divisors (1).

213523049 is an equidigital number, since it uses as much as digits as its factorization.

213523049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 213523049 is about 14612.4278954594. The cubic root of 213523049 is about 597.6977038723.

The spelling of 213523049 in words is "two hundred thirteen million, five hundred twenty-three thousand, forty-nine".