213403147 has 2 divisors, whose sum is σ = 213403148. Its totient is φ = 213403146.

The previous prime is 213403139. The next prime is 213403153. The reversal of 213403147 is 741304312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213403147 - 2³ = 213403139 is a prime.

It is not a weakly prime, because it can be changed into another prime (213403187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106701573 + 106701574.

It is an arithmetic number, because the mean of its divisors is an integer number (106701574).

Almost surely, 2^213403147 is an apocalyptic number.

213403147 is a deficient number, since it is larger than the sum of its proper divisors (1).

213403147 is an equidigital number, since it uses as much as digits as its factorization.

213403147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 213403147 is about 14608.3245788146. The cubic root of 213403147 is about 597.5858056191.

Adding to 213403147 its reverse (741304312), we get a palindrome (954707459).

The spelling of 213403147 in words is "two hundred thirteen million, four hundred three thousand, one hundred forty-seven".