213409151 has 2 divisors, whose sum is σ = 213409152. Its totient is φ = 213409150.

The previous prime is 213409139. The next prime is 213409153. The reversal of 213409151 is 151904312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213409151 is a prime.

Together with 213409153, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213409151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213409153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106704575 + 106704576.

It is an arithmetic number, because the mean of its divisors is an integer number (106704576).

Almost surely, 2^213409151 is an apocalyptic number.

213409151 is a deficient number, since it is larger than the sum of its proper divisors (1).

213409151 is an equidigital number, since it uses as much as digits as its factorization.

213409151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 213409151 is about 14608.5300766367. The cubic root of 213409151 is about 597.5914098344.

The spelling of 213409151 in words is "two hundred thirteen million, four hundred nine thousand, one hundred fifty-one".