352139789 has 4 divisors (see below), whose sum is σ = 358108320. Its totient is φ = 346171260.

The previous prime is 352139783. The next prime is 352139807. The reversal of 352139789 is 987931253.

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: 987931253 = 9067 ⋅108959.

It is a cyclic number.

It is not a de Polignac number, because 352139789 - 2⁸ = 352139533 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 (352139783) 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, 2984177 + ... + 2984294.

It is an arithmetic number, because the mean of its divisors is an integer number (89527080).

Almost surely, 2^352139789 is an apocalyptic number.

It is an amenable number.

352139789 is a deficient number, since it is larger than the sum of its proper divisors (5968531).

352139789 is an equidigital number, since it uses as much as digits as its factorization.

352139789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5968530.

The product of its digits is 408240, while the sum is 47.

The square root of 352139789 is about 18765.3880588705. The cubic root of 352139789 is about 706.1631213360.

The spelling of 352139789 in words is "three hundred fifty-two million, one hundred thirty-nine thousand, seven hundred eighty-nine".