213229042 has 16 divisors (see below), whose sum is σ = 344778840. Its totient is φ = 98318592.

The previous prime is 213229019. The next prime is 213229043. The reversal of 213229042 is 240922312.

It can be written as a sum of positive squares in 4 ways, for example, as 155027401 + 58201641 = 12451^2 + 7629^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213228998 and 213229016.

It is not an unprimeable number, because it can be changed into a prime (213229043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28618 + ... + 35290.

Almost surely, 2^213229042 is an apocalyptic number.

213229042 is a deficient number, since it is larger than the sum of its proper divisors (131549798).

213229042 is a wasteful number, since it uses less digits than its factorization.

213229042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7917.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 213229042 is about 14602.3642606257. The cubic root of 213229042 is about 597.4232479040.

The spelling of 213229042 in words is "two hundred thirteen million, two hundred twenty-nine thousand, forty-two".