213403142 has 8 divisors (see below), whose sum is σ = 338934456. Its totient is φ = 100424992.

The previous prime is 213403139. The next prime is 213403147. The reversal of 213403142 is 241304312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213403147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3138248 + ... + 3138315.

It is an arithmetic number, because the mean of its divisors is an integer number (42366807).

Almost surely, 2^213403142 is an apocalyptic number.

213403142 is a deficient number, since it is larger than the sum of its proper divisors (125531314).

213403142 is a wasteful number, since it uses less digits than its factorization.

213403142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276582.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 213403142 is about 14608.3244076793. The cubic root of 213403142 is about 597.5858009520.

Adding to 213403142 its reverse (241304312), we get a palindrome (454707454).

The spelling of 213403142 in words is "two hundred thirteen million, four hundred three thousand, one hundred forty-two".