352131867649 has 3 divisors (see below), whose sum is σ = 352132461057. Its totient is φ = 352131274242.

The previous prime is 352131867569. The next prime is 352131867701. The reversal of 352131867649 is 946768131253.

It is a happy number.

The square root of 352131867649 is 593407.

It is a perfect power (a square), and thus also a powerful number.

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 not a de Polignac number, because 352131867649 - 2¹⁵ = 352131834881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 352131867649.

It is not an unprimeable number, because it can be changed into a prime (352131867449) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 296704 + ... + 890110.

It is an arithmetic number, because the mean of its divisors is an integer number (117377487019).

Almost surely, 2^352131867649 is an apocalyptic number.

352131867649 is the 593407-th square number.

352131867649 is the 296704-th centered octagonal number.

It is an amenable number.

352131867649 is a deficient number, since it is larger than the sum of its proper divisors (593408).

352131867649 is an frugal number, since it uses more digits than its factorization.

352131867649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186814 (or 593407 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The spelling of 352131867649 in words is "three hundred fifty-two billion, one hundred thirty-one million, eight hundred sixty-seven thousand, six hundred forty-nine".