352134021 has 4 divisors (see below), whose sum is σ = 469512032. Its totient is φ = 234756012.

The previous prime is 352133993. The next prime is 352134023. The reversal of 352134021 is 120431253.

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 not a de Polignac number, because 352134021 - 2⁷ = 352133893 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 (352134023) 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, 58689001 + ... + 58689006.

It is an arithmetic number, because the mean of its divisors is an integer number (117378008).

Almost surely, 2^352134021 is an apocalyptic number.

It is an amenable number.

352134021 is a deficient number, since it is larger than the sum of its proper divisors (117378011).

352134021 is a wasteful number, since it uses less digits than its factorization.

352134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117378010.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 352134021 is about 18765.2343710384. The cubic root of 352134021 is about 706.1592656976.

Adding to 352134021 its reverse (120431253), we get a palindrome (472565274).

The spelling of 352134021 in words is "three hundred fifty-two million, one hundred thirty-four thousand, twenty-one".