331245131 has 8 divisors (see below), whose sum is σ = 378676704. Its totient is φ = 283841280.

The previous prime is 331245121. The next prime is 331245133. The reversal of 331245131 is 131542133.

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

It is a cyclic number.

It is not a de Polignac number, because 331245131 - 2¹⁰ = 331244107 is a prime.

It is a super-2 number, since 2×331245131² = 219446673622414322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331245097 and 331245106.

It is not an unprimeable number, because it can be changed into a prime (331245133) 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, 38921 + ... + 46661.

It is an arithmetic number, because the mean of its divisors is an integer number (47334588).

Almost surely, 2^331245131 is an apocalyptic number.

331245131 is a deficient number, since it is larger than the sum of its proper divisors (47431573).

331245131 is an equidigital number, since it uses as much as digits as its factorization.

331245131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13861.

The product of its digits is 1080, while the sum is 23.

The square root of 331245131 is about 18200.1409609926. The cubic root of 331245131 is about 691.9103616893.

Adding to 331245131 its reverse (131542133), we get a palindrome (462787264).

The spelling of 331245131 in words is "three hundred thirty-one million, two hundred forty-five thousand, one hundred thirty-one".