352561331 has 4 divisors (see below), whose sum is σ = 352603272. Its totient is φ = 352519392.

The previous prime is 352561327. The next prime is 352561367. The reversal of 352561331 is 133165253.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 352561331 - 2² = 352561327 is a prime.

It is a super-2 number, since 2×352561331² = 248598984232983122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 352561294 and 352561303.

It is not an unprimeable number, because it can be changed into a prime (352567331) 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, 3521 + ... + 26786.

It is an arithmetic number, because the mean of its divisors is an integer number (88150818).

Almost surely, 2^352561331 is an apocalyptic number.

352561331 is a deficient number, since it is larger than the sum of its proper divisors (41941).

352561331 is a wasteful number, since it uses less digits than its factorization.

352561331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41940.

The product of its digits is 8100, while the sum is 29.

The square root of 352561331 is about 18776.6166015073. The cubic root of 352561331 is about 706.4447885610. Note that the first 3 decimals are identical.

The spelling of 352561331 in words is "three hundred fifty-two million, five hundred sixty-one thousand, three hundred thirty-one".