352130731 has 4 divisors (see below), whose sum is σ = 364273200. Its totient is φ = 339988264.

The previous prime is 352130711. The next prime is 352130777. The reversal of 352130731 is 137031253.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 352130731 - 2¹¹ = 352128683 is a prime.

It is a super-2 number, since 2×352130731² = 247992103429188722, 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 = 352130696 and 352130705.

It is not an unprimeable number, because it can be changed into a prime (352130711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6071191 + ... + 6071248.

It is an arithmetic number, because the mean of its divisors is an integer number (91068300).

Almost surely, 2^352130731 is an apocalyptic number.

352130731 is a deficient number, since it is larger than the sum of its proper divisors (12142469).

352130731 is a wasteful number, since it uses less digits than its factorization.

352130731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12142468.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 352130731 is about 18765.1467087257. The cubic root of 352130731 is about 706.1570664675.

Adding to 352130731 its reverse (137031253), we get a palindrome (489161984).

The spelling of 352130731 in words is "three hundred fifty-two million, one hundred thirty thousand, seven hundred thirty-one".