331401081 has 8 divisors (see below), whose sum is σ = 482037984. Its totient is φ = 200849120.

The previous prime is 331401071. The next prime is 331401101. The reversal of 331401081 is 180104133.

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 331401081 - 2⁶ = 331401017 is a prime.

It is a super-2 number, since 2×331401081² = 219653352975937122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331401001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5021196 + ... + 5021261.

It is an arithmetic number, because the mean of its divisors is an integer number (60254748).

Almost surely, 2^331401081 is an apocalyptic number.

It is an amenable number.

331401081 is a deficient number, since it is larger than the sum of its proper divisors (150636903).

331401081 is a wasteful number, since it uses less digits than its factorization.

331401081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042471.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 331401081 is about 18204.4247643258. The cubic root of 331401081 is about 692.0189283082.

The spelling of 331401081 in words is "three hundred thirty-one million, four hundred one thousand, eighty-one".