34212191 has 12 divisors (see below), whose sum is σ = 37446192. Its totient is φ = 31239936.

The previous prime is 34212187. The next prime is 34212197. The reversal of 34212191 is 19121243.

It is not a de Polignac number, because 34212191 - 2² = 34212187 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 (34212197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15350 + ... + 17436.

It is an arithmetic number, because the mean of its divisors is an integer number (3120516).

Almost surely, 2^34212191 is an apocalyptic number.

34212191 is a deficient number, since it is larger than the sum of its proper divisors (3234001).

34212191 is a wasteful number, since it uses less digits than its factorization.

34212191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210 (or 2197 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 34212191 is about 5849.1188225236. The cubic root of 34212191 is about 324.6337206868.

The spelling of 34212191 in words is "thirty-four million, two hundred twelve thousand, one hundred ninety-one".