311424142 has 8 divisors (see below), whose sum is σ = 471502296. Its totient is φ = 154256712.

The previous prime is 311424137. The next prime is 311424149. The reversal of 311424142 is 241424113.

It is a happy number.

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 (311424149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727413 + ... + 727840.

It is an arithmetic number, because the mean of its divisors is an integer number (58937787).

Almost surely, 2^311424142 is an apocalyptic number.

311424142 is a deficient number, since it is larger than the sum of its proper divisors (160078154).

311424142 is a wasteful number, since it uses less digits than its factorization.

311424142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455362.

The product of its digits is 768, while the sum is 22.

The square root of 311424142 is about 17647.2134344207. The cubic root of 311424142 is about 677.8247546426.

Adding to 311424142 its reverse (241424113), we get a palindrome (552848255).

The spelling of 311424142 in words is "three hundred eleven million, four hundred twenty-four thousand, one hundred forty-two".