352531145 has 4 divisors (see below), whose sum is σ = 423037380. Its totient is φ = 282024912.

The previous prime is 352531121. The next prime is 352531147. The reversal of 352531145 is 541135253.

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

It can be written as a sum of positive squares in 2 ways, for example, as 166590649 + 185940496 = 12907^2 + 13636^2 .

It is a cyclic number.

It is not a de Polignac number, because 352531145 - 2⁸ = 352530889 is a prime.

It is a super-2 number, since 2×352531145² = 248556416390022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (352531147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35253110 + ... + 35253119.

It is an arithmetic number, because the mean of its divisors is an integer number (105759345).

Almost surely, 2^352531145 is an apocalyptic number.

It is an amenable number.

352531145 is a deficient number, since it is larger than the sum of its proper divisors (70506235).

352531145 is an equidigital number, since it uses as much as digits as its factorization.

352531145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70506234.

The product of its digits is 9000, while the sum is 29.

The square root of 352531145 is about 18775.8127653638. The cubic root of 352531145 is about 706.4246262524.

Adding to 352531145 its reverse (541135253), we get a palindrome (893666398).

The spelling of 352531145 in words is "three hundred fifty-two million, five hundred thirty-one thousand, one hundred forty-five".