331366461 has 8 divisors (see below), whose sum is σ = 447145440. Its totient is φ = 218249232.

The previous prime is 331366459. The next prime is 331366489. The reversal of 331366461 is 164663133.

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

It is not a de Polignac number, because 331366461 - 2¹ = 331366459 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331361461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665146 + ... + 665643.

It is an arithmetic number, because the mean of its divisors is an integer number (55893180).

Almost surely, 2^331366461 is an apocalyptic number.

It is an amenable number.

331366461 is a deficient number, since it is larger than the sum of its proper divisors (115778979).

331366461 is a wasteful number, since it uses less digits than its factorization.

331366461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330875.

The product of its digits is 23328, while the sum is 33.

The square root of 331366461 is about 18203.4738717641. The cubic root of 331366461 is about 691.9948300871.

Subtracting from 331366461 its product of digits (23328), we obtain a palindrome (331343133).

The spelling of 331366461 in words is "three hundred thirty-one million, three hundred sixty-six thousand, four hundred sixty-one".