213697193 has 2 divisors, whose sum is σ = 213697194. Its totient is φ = 213697192.

The previous prime is 213697151. The next prime is 213697217. The reversal of 213697193 is 391796312.

213697193 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., 182034064 + 31663129 = 13492^2 + 5627^2 .

It is a cyclic number.

It is not a de Polignac number, because 213697193 - 2¹² = 213693097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213697193.

It is not a weakly prime, because it can be changed into another prime (213697093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106848596 + 106848597.

It is an arithmetic number, because the mean of its divisors is an integer number (106848597).

Almost surely, 2^213697193 is an apocalyptic number.

It is an amenable number.

213697193 is a deficient number, since it is larger than the sum of its proper divisors (1).

213697193 is an equidigital number, since it uses as much as digits as its factorization.

213697193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 41.

The square root of 213697193 is about 14618.3854443642. The cubic root of 213697193 is about 597.8601487633.

The spelling of 213697193 in words is "two hundred thirteen million, six hundred ninety-seven thousand, one hundred ninety-three".