213953029 has 2 divisors, whose sum is σ = 213953030. Its totient is φ = 213953028.

The previous prime is 213953021. The next prime is 213953083. The reversal of 213953029 is 920359312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212488929 + 1464100 = 14577^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 213953029 - 2³ = 213953021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213952985 and 213953003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213953021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106976514 + 106976515.

It is an arithmetic number, because the mean of its divisors is an integer number (106976515).

Almost surely, 2^213953029 is an apocalyptic number.

It is an amenable number.

213953029 is a deficient number, since it is larger than the sum of its proper divisors (1).

213953029 is an equidigital number, since it uses as much as digits as its factorization.

213953029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 213953029 is about 14627.1333144947. The cubic root of 213953029 is about 598.0986375475.

The spelling of 213953029 in words is "two hundred thirteen million, nine hundred fifty-three thousand, twenty-nine".