352018139 has 6 divisors (see below), whose sum is σ = 384087684. Its totient is φ = 319959920.

The previous prime is 352018127. The next prime is 352018181. The reversal of 352018139 is 931810253.

It is not a de Polignac number, because 352018139 - 2¹⁶ = 351952603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352068139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59399 + ... + 65055.

It is an arithmetic number, because the mean of its divisors is an integer number (64014614).

Almost surely, 2^352018139 is an apocalyptic number.

352018139 is a deficient number, since it is larger than the sum of its proper divisors (32069545).

352018139 is an frugal number, since it uses more digits than its factorization.

352018139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11325 (or 5668 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 352018139 is about 18762.1464390405. The cubic root of 352018139 is about 706.0817950744.

The spelling of 352018139 in words is "three hundred fifty-two million, eighteen thousand, one hundred thirty-nine".