331061000 has 64 divisors (see below), whose sum is σ = 782898480. Its totient is φ = 131020800.

The previous prime is 331060991. The next prime is 331061053. The reversal of 331061000 is 160133.

It can be written as a sum of positive squares in 8 ways, for example, as 56761156 + 274299844 = 7534^2 + 16562^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95294 + ... + 98706.

Almost surely, 2^331061000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331061000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391449240).

331061000 is an abundant number, since it is smaller than the sum of its proper divisors (451837480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331061000 is a wasteful number, since it uses less digits than its factorization.

331061000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531 (or 3517 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 331061000 is about 18195.0817530452. The cubic root of 331061000 is about 691.7821326240.

The spelling of 331061000 in words is "three hundred thirty-one million, sixty-one thousand".