349862251 has 4 divisors (see below), whose sum is σ = 350141400. Its totient is φ = 349583104.

The previous prime is 349862239. The next prime is 349862273. The reversal of 349862251 is 152268943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 349862251 - 2¹³ = 349854059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349862221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137686 + ... + 140203.

It is an arithmetic number, because the mean of its divisors is an integer number (87535350).

Almost surely, 2^349862251 is an apocalyptic number.

349862251 is a deficient number, since it is larger than the sum of its proper divisors (279149).

349862251 is a wasteful number, since it uses less digits than its factorization.

349862251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279148.

The product of its digits is 103680, while the sum is 40.

The square root of 349862251 is about 18704.6050746868. The cubic root of 349862251 is about 704.6374078985.

The spelling of 349862251 in words is "three hundred forty-nine million, eight hundred sixty-two thousand, two hundred fifty-one".