213400651 has 2 divisors, whose sum is σ = 213400652. Its totient is φ = 213400650.

The previous prime is 213400639. The next prime is 213400661. The reversal of 213400651 is 156004312.

213400651 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 is a cyclic number.

It is not a de Polignac number, because 213400651 - 2⁵ = 213400619 is a prime.

It is not a weakly prime, because it can be changed into another prime (213400661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106700325 + 106700326.

It is an arithmetic number, because the mean of its divisors is an integer number (106700326).

Almost surely, 2^213400651 is an apocalyptic number.

213400651 is a deficient number, since it is larger than the sum of its proper divisors (1).

213400651 is an equidigital number, since it uses as much as digits as its factorization.

213400651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 213400651 is about 14608.2391478234. The cubic root of 213400651 is about 597.5834757878.

Adding to 213400651 its reverse (156004312), we get a palindrome (369404963).

The spelling of 213400651 in words is "two hundred thirteen million, four hundred thousand, six hundred fifty-one".