210313042 has 4 divisors (see below), whose sum is σ = 315469566. Its totient is φ = 105156520.

The previous prime is 210313039. The next prime is 210313049. The reversal of 210313042 is 240313012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 136679481 + 73633561 = 11691^2 + 8581^2 .

It is not an unprimeable number, because it can be changed into a prime (210313049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52578259 + ... + 52578262.

Almost surely, 2^210313042 is an apocalyptic number.

210313042 is a deficient number, since it is larger than the sum of its proper divisors (105156524).

210313042 is a wasteful number, since it uses less digits than its factorization.

210313042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105156523.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 210313042 is about 14502.1736991390. The cubic root of 210313042 is about 594.6873974057.

Adding to 210313042 its reverse (240313012), we get a palindrome (450626054).

The spelling of 210313042 in words is "two hundred ten million, three hundred thirteen thousand, forty-two".