351272605 has 8 divisors (see below), whose sum is σ = 429480792. Its totient is φ = 275715648.

The previous prime is 351272573. The next prime is 351272609. The reversal of 351272605 is 506272153.

It can be written as a sum of positive squares in 4 ways, for example, as 130393561 + 220879044 = 11419^2 + 14862^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 351272605 - 2⁵ = 351272573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351272609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662514 + ... + 663043.

It is an arithmetic number, because the mean of its divisors is an integer number (53685099).

Almost surely, 2^351272605 is an apocalyptic number.

It is an amenable number.

351272605 is a deficient number, since it is larger than the sum of its proper divisors (78208187).

351272605 is a wasteful number, since it uses less digits than its factorization.

351272605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325615.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 351272605 is about 18742.2678723787. The cubic root of 351272605 is about 705.5829760379.

The spelling of 351272605 in words is "three hundred fifty-one million, two hundred seventy-two thousand, six hundred five".