331145450 has 24 divisors (see below), whose sum is σ = 618641580. Its totient is φ = 131875200.

The previous prime is 331145443. The next prime is 331145453. The reversal of 331145450 is 54541133.

It can be written as a sum of positive squares in 6 ways, for example, as 242954569 + 88190881 = 15587^2 + 9391^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (331145453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3011 + ... + 25910.

Almost surely, 2^331145450 is an apocalyptic number.

331145450 is a deficient number, since it is larger than the sum of its proper divisors (287496130).

331145450 is a wasteful number, since it uses less digits than its factorization.

331145450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29162 (or 29157 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 331145450 is about 18197.4022871398. The cubic root of 331145450 is about 691.8409496137.

Adding to 331145450 its reverse (54541133), we get a palindrome (385686583).

The spelling of 331145450 in words is "three hundred thirty-one million, one hundred forty-five thousand, four hundred fifty".