331132142 has 32 divisors (see below), whose sum is σ = 561199104. Its totient is φ = 145173600.

The previous prime is 331132141. The next prime is 331132159. The reversal of 331132142 is 241231133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331132141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270143 + ... + 271365.

It is an arithmetic number, because the mean of its divisors is an integer number (17537472).

Almost surely, 2^331132142 is an apocalyptic number.

331132142 is a deficient number, since it is larger than the sum of its proper divisors (230066962).

331132142 is a wasteful number, since it uses less digits than its factorization.

331132142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664.

The product of its digits is 432, while the sum is 20.

The square root of 331132142 is about 18197.0366268797. The cubic root of 331132142 is about 691.8316816392.

Adding to 331132142 its reverse (241231133), we get a palindrome (572363275).

It can be divided in two parts, 3311 and 32142, that added together give a palindrome (35453).

The spelling of 331132142 in words is "three hundred thirty-one million, one hundred thirty-two thousand, one hundred forty-two".