352160621 has 4 divisors (see below), whose sum is σ = 353308032. Its totient is φ = 351013212.

The previous prime is 352160597. The next prime is 352160623. The reversal of 352160621 is 126061253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 126061253 = 337 ⋅374069.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-352160621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352160623) 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, 573245 + ... + 573858.

It is an arithmetic number, because the mean of its divisors is an integer number (88327008).

Almost surely, 2^352160621 is an apocalyptic number.

It is an amenable number.

352160621 is a deficient number, since it is larger than the sum of its proper divisors (1147411).

352160621 is a wasteful number, since it uses less digits than its factorization.

352160621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147410.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 352160621 is about 18765.9431151221. The cubic root of 352160621 is about 706.1770462038.

The spelling of 352160621 in words is "three hundred fifty-two million, one hundred sixty thousand, six hundred twenty-one".