351342891 has 6 divisors (see below), whose sum is σ = 507495300. Its totient is φ = 234228588.

The previous prime is 351342853. The next prime is 351342911. The reversal of 351342891 is 198243153.

It is not a de Polignac number, because 351342891 - 2⁷ = 351342763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (351342821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19519041 + ... + 19519058.

It is an arithmetic number, because the mean of its divisors is an integer number (84582550).

Almost surely, 2^351342891 is an apocalyptic number.

351342891 is a deficient number, since it is larger than the sum of its proper divisors (156152409).

351342891 is a wasteful number, since it uses less digits than its factorization.

351342891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39038105 (or 39038102 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 351342891 is about 18744.1428451663. The cubic root of 351342891 is about 705.6300328413.

It can be divided in two parts, 35134 and 2891, that added together give a square (38025 = 195²).

The spelling of 351342891 in words is "three hundred fifty-one million, three hundred forty-two thousand, eight hundred ninety-one".