351205227 has 42 divisors (see below), whose sum is σ = 559699068. Its totient is φ = 220231872.

The previous prime is 351205199. The next prime is 351205247. The reversal of 351205227 is 722502153.

It is not a de Polignac number, because 351205227 - 2¹¹ = 351203179 is a prime.

It is a super-2 number, since 2×351205227² = 246690222944243058, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 351205227.

It is not an unprimeable number, because it can be changed into a prime (351205247) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 209848 + ... + 211514.

Almost surely, 2^351205227 is an apocalyptic number.

351205227 is a deficient number, since it is larger than the sum of its proper divisors (208493841).

351205227 is an equidigital number, since it uses as much as digits as its factorization.

351205227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 351205227 is about 18740.4702982609. The cubic root of 351205227 is about 705.5378602608.

The spelling of 351205227 in words is "three hundred fifty-one million, two hundred five thousand, two hundred twenty-seven".