331600641 has 4 divisors (see below), whose sum is σ = 442134192. Its totient is φ = 221067092.

The previous prime is 331600627. The next prime is 331600663. The reversal of 331600641 is 146006133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331600641 - 2¹¹ = 331598593 is a prime.

It is a super-2 number, since 2×331600641² = 219917970223221762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331600741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55266771 + ... + 55266776.

It is an arithmetic number, because the mean of its divisors is an integer number (110533548).

Almost surely, 2^331600641 is an apocalyptic number.

It is an amenable number.

331600641 is a deficient number, since it is larger than the sum of its proper divisors (110533551).

331600641 is a wasteful number, since it uses less digits than its factorization.

331600641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110533550.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 331600641 is about 18209.9050244640. The cubic root of 331600641 is about 692.1578049291.

Adding to 331600641 its reverse (146006133), we get a palindrome (477606774).

The spelling of 331600641 in words is "three hundred thirty-one million, six hundred thousand, six hundred forty-one".