352142521 has 4 divisors (see below), whose sum is σ = 352903552. Its totient is φ = 351381492.

The previous prime is 352142519. The next prime is 352142537. The reversal of 352142521 is 125241253.

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.

It is a cyclic number.

It is not a de Polignac number, because 352142521 - 2¹ = 352142519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352142551) 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, 379821 + ... + 380746.

It is an arithmetic number, because the mean of its divisors is an integer number (88225888).

Almost surely, 2^352142521 is an apocalyptic number.

It is an amenable number.

352142521 is a deficient number, since it is larger than the sum of its proper divisors (761031).

352142521 is an equidigital number, since it uses as much as digits as its factorization.

352142521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761030.

The product of its digits is 2400, while the sum is 25.

The square root of 352142521 is about 18765.4608523212. The cubic root of 352142521 is about 706.1649475356.

Adding to 352142521 its reverse (125241253), we get a palindrome (477383774).

The spelling of 352142521 in words is "three hundred fifty-two million, one hundred forty-two thousand, five hundred twenty-one".