213403093 has 2 divisors, whose sum is σ = 213403094. Its totient is φ = 213403092.

The previous prime is 213403081. The next prime is 213403097. The reversal of 213403093 is 390304312.

It is a happy number.

213403093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212197489 + 1205604 = 14567^2 + 1098^2 .

It is a cyclic number.

It is not a de Polignac number, because 213403093 - 2¹³ = 213394901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213403097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106701546 + 106701547.

It is an arithmetic number, because the mean of its divisors is an integer number (106701547).

Almost surely, 2^213403093 is an apocalyptic number.

It is an amenable number.

213403093 is a deficient number, since it is larger than the sum of its proper divisors (1).

213403093 is an equidigital number, since it uses as much as digits as its factorization.

213403093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 213403093 is about 14608.3227305533. The cubic root of 213403093 is about 597.5857552143.

The spelling of 213403093 in words is "two hundred thirteen million, four hundred three thousand, ninety-three".